1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5  * in compliance with the License. You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the License
10  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11  * or implied. See the License for the specific language governing permissions and limitations under
12  * the License.
13  */
14 
15 package android.telecom;
16 
17 import static android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE;
18 
19 import android.Manifest;
20 import android.annotation.IntDef;
21 import android.annotation.NonNull;
22 import android.annotation.Nullable;
23 import android.annotation.RequiresPermission;
24 import android.annotation.SuppressAutoDoc;
25 import android.annotation.SuppressLint;
26 import android.annotation.SystemApi;
27 import android.annotation.SystemService;
28 import android.annotation.TestApi;
29 import android.compat.annotation.UnsupportedAppUsage;
30 import android.content.ComponentName;
31 import android.content.Context;
32 import android.content.Intent;
33 import android.net.Uri;
34 import android.os.Build;
35 import android.os.Bundle;
36 import android.os.RemoteException;
37 import android.os.ServiceManager;
38 import android.os.UserHandle;
39 import android.telephony.Annotation.CallState;
40 import android.telephony.SubscriptionManager;
41 import android.telephony.TelephonyManager;
42 import android.text.TextUtils;
43 import android.util.Log;
44 
45 import com.android.internal.telecom.ITelecomService;
46 
47 import java.lang.annotation.Retention;
48 import java.lang.annotation.RetentionPolicy;
49 import java.util.ArrayList;
50 import java.util.Collections;
51 import java.util.List;
52 import java.util.Objects;
53 import java.util.concurrent.Executor;
54 
55 /**
56  * Provides access to information about active calls and registration/call-management functionality.
57  * Apps can use methods in this class to determine the current call state.
58  * <p>
59  * Apps do not instantiate this class directly; instead, they retrieve a reference to an instance
60  * through {@link Context#getSystemService Context.getSystemService(Context.TELECOM_SERVICE)}.
61  * <p>
62  * Note that access to some telecom information is permission-protected. Your app cannot access the
63  * protected information or gain access to protected functionality unless it has the appropriate
64  * permissions declared in its manifest file. Where permissions apply, they are noted in the method
65  * descriptions.
66  */
67 @SuppressAutoDoc
68 @SystemService(Context.TELECOM_SERVICE)
69 public class TelecomManager {
70 
71     /**
72      * Activity action: Starts the UI for handing an incoming call. This intent starts the in-call
73      * UI by notifying the Telecom system that an incoming call exists for a specific call service
74      * (see {@link android.telecom.ConnectionService}). Telecom reads the Intent extras to find
75      * and bind to the appropriate {@link android.telecom.ConnectionService} which Telecom will
76      * ultimately use to control and get information about the call.
77      * <p>
78      * Input: get*Extra field {@link #EXTRA_PHONE_ACCOUNT_HANDLE} contains the component name of the
79      * {@link android.telecom.ConnectionService} that Telecom should bind to. Telecom will then
80      * ask the connection service for more information about the call prior to showing any UI.
81      *
82      * @deprecated Use {@link #addNewIncomingCall} instead.
83      */
84     public static final String ACTION_INCOMING_CALL = "android.telecom.action.INCOMING_CALL";
85 
86     /**
87      * Similar to {@link #ACTION_INCOMING_CALL}, but is used only by Telephony to add a new
88      * sim-initiated MO call for carrier testing.
89      * @deprecated Use {@link #addNewUnknownCall} instead.
90      * @hide
91      */
92     public static final String ACTION_NEW_UNKNOWN_CALL = "android.telecom.action.NEW_UNKNOWN_CALL";
93 
94     /**
95      * An {@link android.content.Intent} action sent by the telecom framework to start a
96      * configuration dialog for a registered {@link PhoneAccount}. There is no default dialog
97      * and each app that registers a {@link PhoneAccount} should provide one if desired.
98      * <p>
99      * A user can access the list of enabled {@link android.telecom.PhoneAccount}s through the Phone
100      * app's settings menu. For each entry, the settings app will add a click action. When
101      * triggered, the click-action will start this intent along with the extra
102      * {@link #EXTRA_PHONE_ACCOUNT_HANDLE} to indicate the {@link PhoneAccount} to configure. If the
103      * {@link PhoneAccount} package does not register an {@link android.app.Activity} for this
104      * intent, then it will not be sent.
105      */
106     public static final String ACTION_CONFIGURE_PHONE_ACCOUNT =
107             "android.telecom.action.CONFIGURE_PHONE_ACCOUNT";
108 
109     /**
110      * The {@link android.content.Intent} action used to show the call accessibility settings page.
111      */
112     public static final String ACTION_SHOW_CALL_ACCESSIBILITY_SETTINGS =
113             "android.telecom.action.SHOW_CALL_ACCESSIBILITY_SETTINGS";
114 
115     /**
116      * The {@link android.content.Intent} action used to show the call settings page.
117      */
118     public static final String ACTION_SHOW_CALL_SETTINGS =
119             "android.telecom.action.SHOW_CALL_SETTINGS";
120 
121     /**
122      * The {@link android.content.Intent} action used to show the respond via SMS settings page.
123      */
124     public static final String ACTION_SHOW_RESPOND_VIA_SMS_SETTINGS =
125             "android.telecom.action.SHOW_RESPOND_VIA_SMS_SETTINGS";
126 
127     /**
128      * The {@link android.content.Intent} action used to show the settings page used to configure
129      * {@link PhoneAccount} preferences.
130      */
131     public static final String ACTION_CHANGE_PHONE_ACCOUNTS =
132             "android.telecom.action.CHANGE_PHONE_ACCOUNTS";
133 
134     /**
135      * {@link android.content.Intent} action used indicate that a new phone account was just
136      * registered.
137      * <p>
138      * The Intent {@link Intent#getExtras() extras} will contain {@link #EXTRA_PHONE_ACCOUNT_HANDLE}
139      * to indicate which {@link PhoneAccount} was registered.
140      * <p>
141      * Will only be sent to the default dialer app (see {@link #getDefaultDialerPackage()}).
142      */
143     public static final String ACTION_PHONE_ACCOUNT_REGISTERED =
144             "android.telecom.action.PHONE_ACCOUNT_REGISTERED";
145 
146     /**
147      * {@link android.content.Intent} action used indicate that a phone account was just
148      * unregistered.
149      * <p>
150      * The Intent {@link Intent#getExtras() extras} will contain {@link #EXTRA_PHONE_ACCOUNT_HANDLE}
151      * to indicate which {@link PhoneAccount} was unregistered.
152      * <p>
153      * Will only be sent to the default dialer app (see {@link #getDefaultDialerPackage()}).
154      */
155     public static final String ACTION_PHONE_ACCOUNT_UNREGISTERED =
156             "android.telecom.action.PHONE_ACCOUNT_UNREGISTERED";
157 
158     /**
159      * Activity action: Shows a dialog asking the user whether or not they want to replace the
160      * current default Dialer with the one specified in
161      * {@link #EXTRA_CHANGE_DEFAULT_DIALER_PACKAGE_NAME}.
162      *
163      * Usage example:
164      * <pre>
165      * Intent intent = new Intent(TelecomManager.ACTION_CHANGE_DEFAULT_DIALER);
166      * intent.putExtra(TelecomManager.EXTRA_CHANGE_DEFAULT_DIALER_PACKAGE_NAME,
167      *         getActivity().getPackageName());
168      * startActivity(intent);
169      * </pre>
170      * <p>
171      * This is no longer supported since Q, please use
172      * {@link android.app.role.RoleManager#createRequestRoleIntent(String)} with
173      * {@link android.app.role.RoleManager#ROLE_DIALER} instead.
174      */
175     public static final String ACTION_CHANGE_DEFAULT_DIALER =
176             "android.telecom.action.CHANGE_DEFAULT_DIALER";
177 
178     /**
179      * Broadcast intent action indicating that the current default dialer has changed.
180      * The string extra {@link #EXTRA_CHANGE_DEFAULT_DIALER_PACKAGE_NAME} will contain the
181      * name of the package that the default dialer was changed to.
182      *
183      * @see #EXTRA_CHANGE_DEFAULT_DIALER_PACKAGE_NAME
184      */
185     public static final String ACTION_DEFAULT_DIALER_CHANGED =
186             "android.telecom.action.DEFAULT_DIALER_CHANGED";
187 
188     /**
189      * Extra value used to provide the package name for {@link #ACTION_CHANGE_DEFAULT_DIALER}.
190      */
191     public static final String EXTRA_CHANGE_DEFAULT_DIALER_PACKAGE_NAME =
192             "android.telecom.extra.CHANGE_DEFAULT_DIALER_PACKAGE_NAME";
193 
194     /**
195      * Broadcast intent action indicating that the current default call screening app has changed.
196      * <p>
197      * Note: This intent is NEVER actually broadcast and will be deprecated in the future.
198      * <p>
199      * An app that want to know if it holds the
200      * {@link android.app.role.RoleManager#ROLE_CALL_SCREENING} role can use
201      * {@link android.app.role.RoleManager#isRoleHeld(String)} to confirm if it holds the role or
202      * not.
203      */
204     public static final String ACTION_DEFAULT_CALL_SCREENING_APP_CHANGED =
205         "android.telecom.action.DEFAULT_CALL_SCREENING_APP_CHANGED";
206 
207     /**
208      * Extra value used with {@link #ACTION_DEFAULT_CALL_SCREENING_APP_CHANGED} broadcast to
209      * indicate the ComponentName of the call screening app which has changed.
210      * <p>
211      * Note: This extra is NOT used and will be deprecated in the future.
212      */
213     public static final String EXTRA_DEFAULT_CALL_SCREENING_APP_COMPONENT_NAME =
214             "android.telecom.extra.DEFAULT_CALL_SCREENING_APP_COMPONENT_NAME";
215 
216     /**
217      * Extra value used with {@link #ACTION_DEFAULT_CALL_SCREENING_APP_CHANGED} broadcast to
218      * indicate whether an app is the default call screening app.
219      * <p>
220      * Note: This extra is NOT used and will be deprecated in the future.
221      */
222     public static final String EXTRA_IS_DEFAULT_CALL_SCREENING_APP =
223             "android.telecom.extra.IS_DEFAULT_CALL_SCREENING_APP";
224 
225     /**
226      * Optional extra for {@link android.content.Intent#ACTION_CALL} containing a boolean that
227      * determines whether the speakerphone should be automatically turned on for an outgoing call.
228      */
229     public static final String EXTRA_START_CALL_WITH_SPEAKERPHONE =
230             "android.telecom.extra.START_CALL_WITH_SPEAKERPHONE";
231 
232     /**
233      * Optional extra for {@link android.content.Intent#ACTION_CALL} containing an integer that
234      * determines the desired video state for an outgoing call.
235      * Valid options:
236      * {@link VideoProfile#STATE_AUDIO_ONLY},
237      * {@link VideoProfile#STATE_BIDIRECTIONAL},
238      * {@link VideoProfile#STATE_RX_ENABLED},
239      * {@link VideoProfile#STATE_TX_ENABLED}.
240      */
241     public static final String EXTRA_START_CALL_WITH_VIDEO_STATE =
242             "android.telecom.extra.START_CALL_WITH_VIDEO_STATE";
243 
244     /**
245      * Optional extra for {@link #addNewIncomingCall(PhoneAccountHandle, Bundle)} containing an
246      * integer that determines the requested video state for an incoming call.
247      * Valid options:
248      * {@link VideoProfile#STATE_AUDIO_ONLY},
249      * {@link VideoProfile#STATE_BIDIRECTIONAL},
250      * {@link VideoProfile#STATE_RX_ENABLED},
251      * {@link VideoProfile#STATE_TX_ENABLED}.
252      */
253     public static final String EXTRA_INCOMING_VIDEO_STATE =
254             "android.telecom.extra.INCOMING_VIDEO_STATE";
255 
256     /**
257      * The extra used with an {@link android.content.Intent#ACTION_CALL} and
258      * {@link android.content.Intent#ACTION_DIAL} {@code Intent} to specify a
259      * {@link PhoneAccountHandle} to use when making the call.
260      * <p class="note">
261      * Retrieve with {@link android.content.Intent#getParcelableExtra(String)}.
262      */
263     public static final String EXTRA_PHONE_ACCOUNT_HANDLE =
264             "android.telecom.extra.PHONE_ACCOUNT_HANDLE";
265 
266     /**
267      * Optional extra for {@link android.content.Intent#ACTION_CALL} containing a string call
268      * subject which will be associated with an outgoing call.  Should only be specified if the
269      * {@link PhoneAccount} supports the capability {@link PhoneAccount#CAPABILITY_CALL_SUBJECT}.
270      */
271     public static final String EXTRA_CALL_SUBJECT = "android.telecom.extra.CALL_SUBJECT";
272 
273     /**
274      * The extra used by a {@link ConnectionService} to provide the handle of the caller that
275      * has initiated a new incoming call.
276      */
277     public static final String EXTRA_INCOMING_CALL_ADDRESS =
278             "android.telecom.extra.INCOMING_CALL_ADDRESS";
279 
280     /**
281      * Optional extra for {@link #ACTION_INCOMING_CALL} containing a {@link Bundle} which contains
282      * metadata about the call. This {@link Bundle} will be returned to the
283      * {@link ConnectionService}.
284      */
285     public static final String EXTRA_INCOMING_CALL_EXTRAS =
286             "android.telecom.extra.INCOMING_CALL_EXTRAS";
287 
288     /**
289      * Optional extra for {@link #ACTION_INCOMING_CALL} containing a boolean to indicate that the
290      * call has an externally generated ringer. Used by the HfpClientConnectionService when In Band
291      * Ringtone is enabled to prevent two ringers from being generated.
292      * @hide
293      */
294     public static final String EXTRA_CALL_EXTERNAL_RINGER =
295             "android.telecom.extra.CALL_EXTERNAL_RINGER";
296 
297     /**
298      * Optional extra for {@link android.content.Intent#ACTION_CALL} and
299      * {@link android.content.Intent#ACTION_DIAL} {@code Intent} containing a {@link Bundle}
300      * which contains metadata about the call. This {@link Bundle} will be saved into
301      * {@code Call.Details} and passed to the {@link ConnectionService} when placing the call.
302      */
303     public static final String EXTRA_OUTGOING_CALL_EXTRAS =
304             "android.telecom.extra.OUTGOING_CALL_EXTRAS";
305 
306     /**
307      * An optional boolean extra on {@link android.content.Intent#ACTION_CALL_EMERGENCY} to tell
308      * whether the user's dial intent is emergency; this is required to specify when the dialed
309      * number is ambiguous, identified as both emergency number and any other non-emergency number;
310      * e.g. in some situation, 611 could be both an emergency number in a country and a
311      * non-emergency number of a carrier's customer service hotline.
312      *
313      * @hide
314      */
315     @SystemApi
316     public static final String EXTRA_IS_USER_INTENT_EMERGENCY_CALL =
317             "android.telecom.extra.IS_USER_INTENT_EMERGENCY_CALL";
318 
319     /**
320      * A mandatory extra containing a {@link Uri} to be passed in when calling
321      * {@link #addNewUnknownCall(PhoneAccountHandle, Bundle)}. The {@link Uri} value indicates
322      * the remote handle of the new call.
323      * @hide
324      */
325     public static final String EXTRA_UNKNOWN_CALL_HANDLE =
326             "android.telecom.extra.UNKNOWN_CALL_HANDLE";
327 
328     /**
329      * Optional extra for incoming and outgoing calls containing a long which specifies the time the
330      * call was created. This value is in milliseconds since boot.
331      * @hide
332      */
333     public static final String EXTRA_CALL_CREATED_TIME_MILLIS =
334             "android.telecom.extra.CALL_CREATED_TIME_MILLIS";
335 
336     /**
337      * Optional extra for incoming and outgoing calls containing a long which specifies the Epoch
338      * time the call was created.
339      * @hide
340      */
341     public static final String EXTRA_CALL_CREATED_EPOCH_TIME_MILLIS =
342             "android.telecom.extra.CALL_CREATED_EPOCH_TIME_MILLIS";
343 
344     /**
345      * Optional extra for incoming and outgoing calls containing a long which specifies the time
346      * telecom began routing the call. This value is in milliseconds since boot.
347      * @hide
348      */
349     public static final String EXTRA_CALL_TELECOM_ROUTING_START_TIME_MILLIS =
350             "android.telecom.extra.CALL_TELECOM_ROUTING_START_TIME_MILLIS";
351 
352     /**
353      * Optional extra for incoming and outgoing calls containing a long which specifies the time
354      * telecom finished routing the call. This value is in milliseconds since boot.
355      * @hide
356      */
357     public static final String EXTRA_CALL_TELECOM_ROUTING_END_TIME_MILLIS =
358             "android.telecom.extra.CALL_TELECOM_ROUTING_END_TIME_MILLIS";
359 
360     /**
361      * Optional extra for {@link android.telephony.TelephonyManager#ACTION_PHONE_STATE_CHANGED}
362      * containing the disconnect code.
363      */
364     public static final String EXTRA_CALL_DISCONNECT_CAUSE =
365             "android.telecom.extra.CALL_DISCONNECT_CAUSE";
366 
367     /**
368      * Optional extra for {@link android.telephony.TelephonyManager#ACTION_PHONE_STATE_CHANGED}
369      * containing the disconnect message.
370      */
371     public static final String EXTRA_CALL_DISCONNECT_MESSAGE =
372             "android.telecom.extra.CALL_DISCONNECT_MESSAGE";
373 
374     /**
375      * Optional extra for {@link android.telephony.TelephonyManager#ACTION_PHONE_STATE_CHANGED}
376      * containing the component name of the associated connection service.
377      * @hide
378      */
379     @SystemApi
380     public static final String EXTRA_CONNECTION_SERVICE =
381             "android.telecom.extra.CONNECTION_SERVICE";
382 
383     /**
384      * Optional extra for communicating the call technology used by a {@link ConnectionService}
385      * to Telecom. Valid values are:
386      * <ul>
387      *     <li>{@link TelephonyManager#PHONE_TYPE_CDMA}</li>
388      *     <li>{@link TelephonyManager#PHONE_TYPE_GSM}</li>
389      *     <li>{@link TelephonyManager#PHONE_TYPE_IMS}</li>
390      *     <li>{@link TelephonyManager#PHONE_TYPE_THIRD_PARTY}</li>
391      *     <li>{@link TelephonyManager#PHONE_TYPE_SIP}</li>
392      * </ul>
393      * @hide
394      */
395     public static final String EXTRA_CALL_TECHNOLOGY_TYPE =
396             "android.telecom.extra.CALL_TECHNOLOGY_TYPE";
397 
398     /**
399      * Optional extra for communicating the call network technology used by a
400      * {@link android.telecom.Connection} to Telecom and InCallUI.
401      *
402      * {@code NETWORK_TYPE_*} in {@link android.telephony.TelephonyManager}.
403      */
404     public static final String EXTRA_CALL_NETWORK_TYPE =
405             "android.telecom.extra.CALL_NETWORK_TYPE";
406 
407     /**
408      * An optional {@link android.content.Intent#ACTION_CALL} intent extra denoting the
409      * package name of the app specifying an alternative gateway for the call.
410      * The value is a string.
411      *
412      * (The following comment corresponds to the all GATEWAY_* extras)
413      * An app which sends the {@link android.content.Intent#ACTION_CALL} intent can specify an
414      * alternative address to dial which is different from the one specified and displayed to
415      * the user. This alternative address is referred to as the gateway address.
416      */
417     public static final String GATEWAY_PROVIDER_PACKAGE =
418             "android.telecom.extra.GATEWAY_PROVIDER_PACKAGE";
419 
420     /**
421      * An optional {@link android.content.Intent#ACTION_CALL} intent extra corresponding to the
422      * original address to dial for the call. This is used when an alternative gateway address is
423      * provided to recall the original address.
424      * The value is a {@link android.net.Uri}.
425      *
426      * (See {@link #GATEWAY_PROVIDER_PACKAGE} for details)
427      */
428     public static final String GATEWAY_ORIGINAL_ADDRESS =
429             "android.telecom.extra.GATEWAY_ORIGINAL_ADDRESS";
430 
431     /**
432      * The number which the party on the other side of the line will see (and use to return the
433      * call).
434      * <p>
435      * {@link ConnectionService}s which interact with {@link RemoteConnection}s should only populate
436      * this if the {@link android.telephony.TelephonyManager#getLine1Number()} value, as that is the
437      * user's expected caller ID.
438      */
439     public static final String EXTRA_CALL_BACK_NUMBER = "android.telecom.extra.CALL_BACK_NUMBER";
440 
441     /**
442      * The number of milliseconds that Telecom should wait after disconnecting a call via the
443      * ACTION_NEW_OUTGOING_CALL broadcast, in order to wait for the app which cancelled the call
444      * to make a new one.
445      * @hide
446      */
447     public static final String EXTRA_NEW_OUTGOING_CALL_CANCEL_TIMEOUT =
448             "android.telecom.extra.NEW_OUTGOING_CALL_CANCEL_TIMEOUT";
449 
450     /**
451      * Boolean extra specified to indicate that the intention of adding a call is to handover an
452      * existing call from the user's device to a different {@link PhoneAccount}.
453      * <p>
454      * Used when calling {@link #addNewIncomingCall(PhoneAccountHandle, Bundle)}
455      * to indicate to Telecom that the purpose of adding a new incoming call is to handover an
456      * existing call from the user's device to a different {@link PhoneAccount}.  This occurs on
457      * the receiving side of a handover.
458      * <p>
459      * Used when Telecom calls
460      * {@link ConnectionService#onCreateOutgoingConnection(PhoneAccountHandle, ConnectionRequest)}
461      * to indicate that the purpose of Telecom requesting a new outgoing connection it to request
462      * a handover to this {@link ConnectionService} from an ongoing call on the user's device.  This
463      * occurs on the initiating side of a handover.
464      * <p>
465      * The phone number of the call used by Telecom to determine which call should be handed over.
466      * @hide
467      * @deprecated Use the public handover APIs.  See
468      * {@link Call#handoverTo(PhoneAccountHandle, int, Bundle)} for more information.
469      */
470     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 119305590)
471     public static final String EXTRA_IS_HANDOVER = "android.telecom.extra.IS_HANDOVER";
472 
473     /**
474      * When {@code true} indicates that a request to create a new connection is for the purpose of
475      * a handover.  Note: This is used with the
476      * {@link android.telecom.Call#handoverTo(PhoneAccountHandle, int, Bundle)} API as part of the
477      * internal communication mechanism with the {@link android.telecom.ConnectionService}.  It is
478      * not the same as the legacy {@link #EXTRA_IS_HANDOVER} extra.
479      * @hide
480      */
481     public static final String EXTRA_IS_HANDOVER_CONNECTION =
482             "android.telecom.extra.IS_HANDOVER_CONNECTION";
483 
484     /**
485      * Parcelable extra used with {@link #EXTRA_IS_HANDOVER} to indicate the source
486      * {@link PhoneAccountHandle} when initiating a handover which {@link ConnectionService}
487      * the handover is from.
488      * @hide
489      */
490     public static final String EXTRA_HANDOVER_FROM_PHONE_ACCOUNT =
491             "android.telecom.extra.HANDOVER_FROM_PHONE_ACCOUNT";
492 
493     /**
494      * Extra key specified in the {@link ConnectionRequest#getExtras()} when Telecom calls
495      * {@link ConnectionService#onCreateOutgoingConnection(PhoneAccountHandle, ConnectionRequest)}
496      * to inform the {@link ConnectionService} what the initial {@link CallAudioState} of the
497      * {@link Connection} will be.
498      * @hide
499      */
500     public static final String EXTRA_CALL_AUDIO_STATE = "android.telecom.extra.CALL_AUDIO_STATE";
501 
502     /**
503      * A boolean extra, which when set on the {@link Intent#ACTION_CALL} intent or on the bundle
504      * passed into {@link #placeCall(Uri, Bundle)}, indicates that the call should be initiated with
505      * an RTT session open. See {@link android.telecom.Call.RttCall} for more information on RTT.
506      */
507     public static final String EXTRA_START_CALL_WITH_RTT =
508             "android.telecom.extra.START_CALL_WITH_RTT";
509 
510     /**
511      * Start an activity indicating that the completion of an outgoing call or an incoming call
512      * which was not blocked by the {@link CallScreeningService}, and which was NOT terminated
513      * while the call was in {@link Call#STATE_AUDIO_PROCESSING}.
514      *
515      * The {@link Uri} extra {@link #EXTRA_HANDLE} will contain the uri handle(phone number) for the
516      * call which completed.
517      *
518      * The integer extra {@link #EXTRA_DISCONNECT_CAUSE} will indicate the reason for the call
519      * disconnection. See {@link #EXTRA_DISCONNECT_CAUSE} for more information.
520      *
521      * The integer extra {@link #EXTRA_CALL_DURATION} will indicate the duration of the call. See
522      * {@link #EXTRA_CALL_DURATION} for more information.
523      */
524     public static final String ACTION_POST_CALL = "android.telecom.action.POST_CALL";
525 
526     /**
527      * A {@link Uri} extra, which when set on the {@link #ACTION_POST_CALL} intent, indicates the
528      * uri handle(phone number) of the completed call.
529      */
530     public static final String EXTRA_HANDLE = "android.telecom.extra.HANDLE";
531 
532     /**
533      * A integer value provided for completed calls to indicate the reason for the call
534      * disconnection.
535      * <p>
536      * Allowed values:
537      * <ul>
538      * <li>{@link DisconnectCause#UNKNOWN}</li>
539      * <li>{@link DisconnectCause#LOCAL}</li>
540      * <li>{@link DisconnectCause#REMOTE}</li>
541      * <li>{@link DisconnectCause#REJECTED}</li>
542      * <li>{@link DisconnectCause#MISSED}</li>
543      * </ul>
544      * </p>
545      */
546     public static final String EXTRA_DISCONNECT_CAUSE = "android.telecom.extra.DISCONNECT_CAUSE";
547 
548     /**
549      * A integer value provided for completed calls to indicate the duration of the call.
550      * <p>
551      * Allowed values:
552      * <ul>
553      * <li>{@link #DURATION_VERY_SHORT}</li>
554      * <li>{@link #DURATION_SHORT}</li>
555      * <li>{@link #DURATION_MEDIUM}</li>
556      * <li>{@link #DURATION_LONG}</li>
557      * </ul>
558      * </p>
559      */
560     public static final String EXTRA_CALL_DURATION = "android.telecom.extra.CALL_DURATION";
561 
562     /**
563      * A integer value for {@link #EXTRA_CALL_DURATION}, indicates the duration of the completed
564      * call was < 3 seconds.
565      */
566     public static final int DURATION_VERY_SHORT = 0;
567 
568     /**
569      * A integer value for {@link #EXTRA_CALL_DURATION}, indicates the duration of the completed
570      * call was >= 3 seconds and < 60 seconds.
571      */
572     public static final int DURATION_SHORT = 1;
573 
574     /**
575      * A integer value for {@link #EXTRA_CALL_DURATION}, indicates the duration of the completed
576      * call was >= 60 seconds and < 120 seconds.
577      */
578     public static final int DURATION_MEDIUM = 2;
579 
580     /**
581      * A integer value for {@link #EXTRA_CALL_DURATION}, indicates the duration of the completed
582      * call was >= 120 seconds.
583      */
584     public static final int DURATION_LONG = 3;
585 
586     /**
587      * The threshold between {@link #DURATION_VERY_SHORT} calls and {@link #DURATION_SHORT} calls in
588      * milliseconds.
589      * @hide
590      */
591     public static final long VERY_SHORT_CALL_TIME_MS = 3000;
592 
593     /**
594      * The threshold between {@link #DURATION_SHORT} calls and {@link #DURATION_MEDIUM} calls in
595      * milliseconds.
596      * @hide
597      */
598     public static final long SHORT_CALL_TIME_MS = 60000;
599 
600     /**
601      * The threshold between {@link #DURATION_MEDIUM} calls and {@link #DURATION_LONG} calls in
602      * milliseconds.
603      * @hide
604      */
605     public static final long MEDIUM_CALL_TIME_MS = 120000;
606 
607     /**
608      * A boolean meta-data value indicating whether an {@link InCallService} implements an
609      * in-call user interface. Dialer implementations (see {@link #getDefaultDialerPackage()}) which
610      * would also like to replace the in-call interface should set this meta-data to {@code true} in
611      * the manifest registration of their {@link InCallService}.
612      */
613     public static final String METADATA_IN_CALL_SERVICE_UI = "android.telecom.IN_CALL_SERVICE_UI";
614 
615     /**
616      * A boolean meta-data value indicating whether an {@link InCallService} implements an
617      * in-call user interface to be used while the device is in car-mode (see
618      * {@link android.content.res.Configuration#UI_MODE_TYPE_CAR}).
619      */
620     public static final String METADATA_IN_CALL_SERVICE_CAR_MODE_UI =
621             "android.telecom.IN_CALL_SERVICE_CAR_MODE_UI";
622 
623     /**
624      * A boolean meta-data value indicating whether an {@link InCallService} implements ringing.
625      * Dialer implementations (see {@link #getDefaultDialerPackage()}) which would also like to
626      * override the system provided ringing should set this meta-data to {@code true} in the
627      * manifest registration of their {@link InCallService}.
628      * <p>
629      * When {@code true}, it is the {@link InCallService}'s responsibility to play a ringtone for
630      * all incoming calls.
631      */
632     public static final String METADATA_IN_CALL_SERVICE_RINGING =
633             "android.telecom.IN_CALL_SERVICE_RINGING";
634 
635     /**
636      * A boolean meta-data value indicating whether an {@link InCallService} wants to be informed of
637      * calls which have the {@link Call.Details#PROPERTY_IS_EXTERNAL_CALL} property.  An external
638      * call is one which a {@link ConnectionService} knows about, but is not connected to directly.
639      * Dialer implementations (see {@link #getDefaultDialerPackage()}) which would like to be
640      * informed of external calls should set this meta-data to {@code true} in the manifest
641      * registration of their {@link InCallService}.  By default, the {@link InCallService} will NOT
642      * be informed of external calls.
643      */
644     public static final String METADATA_INCLUDE_EXTERNAL_CALLS =
645             "android.telecom.INCLUDE_EXTERNAL_CALLS";
646 
647     /**
648      * A boolean meta-data value indicating whether an {@link InCallService} wants to be informed of
649      * calls which have the {@link Call.Details#PROPERTY_SELF_MANAGED} property.  A self-managed
650      * call is one which originates from a self-managed {@link ConnectionService} which has chosen
651      * to implement its own call user interface.  An {@link InCallService} implementation which
652      * would like to be informed of external calls should set this meta-data to {@code true} in the
653      * manifest registration of their {@link InCallService}.  By default, the {@link InCallService}
654      * will NOT be informed about self-managed calls.
655      * <p>
656      * An {@link InCallService} which receives self-managed calls is free to view and control the
657      * state of calls in the self-managed {@link ConnectionService}.  An example use-case is
658      * exposing these calls to an automotive device via its companion app.
659      * <p>
660      * This meta-data can only be set for an {@link InCallService} which also sets
661      * {@link #METADATA_IN_CALL_SERVICE_UI}. Only the default phone/dialer app, or a car-mode
662      * {@link InCallService} can see self-managed calls.
663      * <p>
664      * See also {@link Connection#PROPERTY_SELF_MANAGED}.
665      */
666     public static final String METADATA_INCLUDE_SELF_MANAGED_CALLS =
667             "android.telecom.INCLUDE_SELF_MANAGED_CALLS";
668 
669     /**
670      * The dual tone multi-frequency signaling character sent to indicate the dialing system should
671      * pause for a predefined period.
672      */
673     public static final char DTMF_CHARACTER_PAUSE = ',';
674 
675     /**
676      * The dual-tone multi-frequency signaling character sent to indicate the dialing system should
677      * wait for user confirmation before proceeding.
678      */
679     public static final char DTMF_CHARACTER_WAIT = ';';
680 
681     /**
682      * @hide
683      */
684     @IntDef(prefix = { "TTY_MODE_" },
685             value = {TTY_MODE_OFF, TTY_MODE_FULL, TTY_MODE_HCO, TTY_MODE_VCO})
686     @Retention(RetentionPolicy.SOURCE)
687     public @interface TtyMode {}
688 
689     /**
690      * TTY (teletypewriter) mode is off.
691      *
692      * @hide
693      */
694     @TestApi
695     @SystemApi
696     public static final int TTY_MODE_OFF = 0;
697 
698     /**
699      * TTY (teletypewriter) mode is on. The speaker is off and the microphone is muted. The user
700      * will communicate with the remote party by sending and receiving text messages.
701      *
702      * @hide
703      */
704     @TestApi
705     @SystemApi
706     public static final int TTY_MODE_FULL = 1;
707 
708     /**
709      * TTY (teletypewriter) mode is in hearing carryover mode (HCO). The microphone is muted but the
710      * speaker is on. The user will communicate with the remote party by sending text messages and
711      * hearing an audible reply.
712      *
713      * @hide
714      */
715     @TestApi
716     @SystemApi
717     public static final int TTY_MODE_HCO = 2;
718 
719     /**
720      * TTY (teletypewriter) mode is in voice carryover mode (VCO). The speaker is off but the
721      * microphone is still on. User will communicate with the remote party by speaking and receiving
722      * text message replies.
723      *
724      * @hide
725      */
726     @TestApi
727     @SystemApi
728     public static final int TTY_MODE_VCO = 3;
729 
730     /**
731      * Broadcast intent action indicating that the current TTY mode has changed. An intent extra
732      * provides this state as an int.
733      *
734      * @see #EXTRA_CURRENT_TTY_MODE
735      * @hide
736      */
737     public static final String ACTION_CURRENT_TTY_MODE_CHANGED =
738             "android.telecom.action.CURRENT_TTY_MODE_CHANGED";
739 
740     /**
741      * The lookup key for an int that indicates the current TTY mode.
742      * Valid modes are:
743      * <ul>
744      *     <li>{@link #TTY_MODE_OFF}</li>
745      *     <li>{@link #TTY_MODE_FULL}</li>
746      *     <li>{@link #TTY_MODE_HCO}</li>
747      *     <li>{@link #TTY_MODE_VCO}</li>
748      * </ul>
749      * @hide
750      */
751     public static final String EXTRA_CURRENT_TTY_MODE =
752             "android.telecom.extra.CURRENT_TTY_MODE";
753 
754     /**
755      * Broadcast intent action indicating that the TTY preferred operating mode has changed. An
756      * intent extra provides the new mode as an int.
757      *
758      * @see #EXTRA_TTY_PREFERRED_MODE
759      * @hide
760      */
761     public static final String ACTION_TTY_PREFERRED_MODE_CHANGED =
762             "android.telecom.action.TTY_PREFERRED_MODE_CHANGED";
763 
764     /**
765      * The lookup key for an int that indicates preferred TTY mode. Valid modes are: -
766      * {@link #TTY_MODE_OFF} - {@link #TTY_MODE_FULL} - {@link #TTY_MODE_HCO} -
767      * {@link #TTY_MODE_VCO}
768      *
769      * @hide
770      */
771     public static final String EXTRA_TTY_PREFERRED_MODE =
772             "android.telecom.extra.TTY_PREFERRED_MODE";
773 
774     /**
775      * Broadcast intent action for letting custom component know to show the missed call
776      * notification. If no custom component exists then this is sent to the default dialer which
777      * should post a missed-call notification.
778      */
779     public static final String ACTION_SHOW_MISSED_CALLS_NOTIFICATION =
780             "android.telecom.action.SHOW_MISSED_CALLS_NOTIFICATION";
781 
782     /**
783      * The number of calls associated with the notification. If the number is zero then the missed
784      * call notification should be dismissed.
785      */
786     public static final String EXTRA_NOTIFICATION_COUNT =
787             "android.telecom.extra.NOTIFICATION_COUNT";
788 
789     /**
790      * The number associated with the missed calls. This number is only relevant
791      * when EXTRA_NOTIFICATION_COUNT is 1.
792      */
793     public static final String EXTRA_NOTIFICATION_PHONE_NUMBER =
794             "android.telecom.extra.NOTIFICATION_PHONE_NUMBER";
795 
796     /**
797      * The intent to clear missed calls.
798      * @hide
799      */
800     @SystemApi
801     public static final String EXTRA_CLEAR_MISSED_CALLS_INTENT =
802             "android.telecom.extra.CLEAR_MISSED_CALLS_INTENT";
803 
804     /**
805      * The intent to call back a missed call.
806      * @hide
807      */
808     @SystemApi
809     public static final String EXTRA_CALL_BACK_INTENT =
810             "android.telecom.extra.CALL_BACK_INTENT";
811 
812     /**
813      * The dialer activity responsible for placing emergency calls from, for example, a locked
814      * keyguard.
815      * @hide
816      */
817     public static final ComponentName EMERGENCY_DIALER_COMPONENT =
818             ComponentName.createRelative("com.android.phone", ".EmergencyDialer");
819 
820     /**
821      * The boolean indicated by this extra controls whether or not a call is eligible to undergo
822      * assisted dialing. This extra is stored under {@link #EXTRA_OUTGOING_CALL_EXTRAS}.
823      * <p>
824      * The call initiator can use this extra to indicate that a call used assisted dialing to help
825      * place the call.  This is most commonly used by a Dialer app which provides the ability to
826      * automatically add dialing prefixes when placing international calls.
827      * <p>
828      * Setting this extra on the outgoing call extras will cause the
829      * {@link Connection#PROPERTY_ASSISTED_DIALING} property and
830      * {@link Call.Details#PROPERTY_ASSISTED_DIALING} property to be set on the
831      * {@link Connection}/{@link Call} in question.  When the call is logged to the call log, the
832      * {@link android.provider.CallLog.Calls#FEATURES_ASSISTED_DIALING_USED} call feature is set to
833      * indicate that assisted dialing was used for the call.
834      */
835     public static final String EXTRA_USE_ASSISTED_DIALING =
836             "android.telecom.extra.USE_ASSISTED_DIALING";
837 
838     /**
839      * Optional extra for {@link #placeCall(Uri, Bundle)} containing an integer that specifies
840      * the source where user initiated this call. This data is used in metrics.
841      * Valid sources are:
842      * {@link TelecomManager#CALL_SOURCE_UNSPECIFIED},
843      * {@link TelecomManager#CALL_SOURCE_EMERGENCY_DIALPAD},
844      * {@link TelecomManager#CALL_SOURCE_EMERGENCY_SHORTCUT}.
845      *
846      * @hide
847      */
848     public static final String EXTRA_CALL_SOURCE = "android.telecom.extra.CALL_SOURCE";
849 
850     /**
851      * Indicating the call is initiated via emergency dialer's shortcut button.
852      *
853      * @hide
854      */
855     public static final int CALL_SOURCE_EMERGENCY_SHORTCUT = 2;
856 
857     /**
858      * Indicating the call is initiated via emergency dialer's dialpad.
859      *
860      * @hide
861      */
862     public static final int CALL_SOURCE_EMERGENCY_DIALPAD = 1;
863 
864     /**
865      * Indicating the call source is not specified.
866      *
867      * @hide
868      */
869     public static final int CALL_SOURCE_UNSPECIFIED = 0;
870 
871     /**
872      * The following 4 constants define how properties such as phone numbers and names are
873      * displayed to the user.
874      */
875 
876     /**
877      * Indicates that the address or number of a call is allowed to be displayed for caller ID.
878      */
879     public static final int PRESENTATION_ALLOWED = 1;
880 
881     /**
882      * Indicates that the address or number of a call is blocked by the other party.
883      */
884     public static final int PRESENTATION_RESTRICTED = 2;
885 
886     /**
887      * Indicates that the address or number of a call is not specified or known by the carrier.
888      */
889     public static final int PRESENTATION_UNKNOWN = 3;
890 
891     /**
892      * Indicates that the address or number of a call belongs to a pay phone.
893      */
894     public static final int PRESENTATION_PAYPHONE = 4;
895 
896 
897     /*
898      * Values for the adb property "persist.radio.videocall.audio.output"
899      */
900     /** @hide */
901     public static final int AUDIO_OUTPUT_ENABLE_SPEAKER = 0;
902     /** @hide */
903     public static final int AUDIO_OUTPUT_DISABLE_SPEAKER = 1;
904     /** @hide */
905     public static final int AUDIO_OUTPUT_DEFAULT = AUDIO_OUTPUT_ENABLE_SPEAKER;
906 
907     /** @hide */
908     @Retention(RetentionPolicy.SOURCE)
909     @IntDef(
910             prefix = { "PRESENTATION_" },
911             value = {PRESENTATION_ALLOWED, PRESENTATION_RESTRICTED, PRESENTATION_UNKNOWN,
912             PRESENTATION_PAYPHONE})
913     public @interface Presentation {}
914 
915     private static final String TAG = "TelecomManager";
916 
917     private final Context mContext;
918 
919     private final ITelecomService mTelecomServiceOverride;
920 
921     /**
922      * @hide
923      */
924     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
from(Context context)925     public static TelecomManager from(Context context) {
926         return (TelecomManager) context.getSystemService(Context.TELECOM_SERVICE);
927     }
928 
929     /**
930      * @hide
931      */
TelecomManager(Context context)932     public TelecomManager(Context context) {
933         this(context, null);
934     }
935 
936     /**
937      * @hide
938      */
TelecomManager(Context context, ITelecomService telecomServiceImpl)939     public TelecomManager(Context context, ITelecomService telecomServiceImpl) {
940         Context appContext = context.getApplicationContext();
941         if (appContext != null && Objects.equals(context.getAttributionTag(),
942                 appContext.getAttributionTag())) {
943             mContext = appContext;
944         } else {
945             mContext = context;
946         }
947         mTelecomServiceOverride = telecomServiceImpl;
948     }
949 
950     /**
951      * Return the {@link PhoneAccount} which will be used to place outgoing calls to addresses with
952      * the specified {@code uriScheme}. This {@link PhoneAccount} will always be a member of the
953      * list which is returned from invoking {@link #getCallCapablePhoneAccounts()}. The specific
954      * account returned depends on the following priorities:
955      * <ul>
956      * <li> If the user-selected default {@link PhoneAccount} supports the specified scheme, it will
957      * be returned.
958      * </li>
959      * <li> If there exists only one {@link PhoneAccount} that supports the specified scheme, it
960      * will be returned.
961      * </li>
962      * </ul>
963      * <p>
964      * If no {@link PhoneAccount} fits the criteria above, this method will return {@code null}.
965      *
966      * Requires permission: {@link android.Manifest.permission#READ_PHONE_STATE}
967      *
968      * @param uriScheme The URI scheme.
969      * @return The {@link PhoneAccountHandle} corresponding to the account to be used.
970      */
971     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
getDefaultOutgoingPhoneAccount(String uriScheme)972     public PhoneAccountHandle getDefaultOutgoingPhoneAccount(String uriScheme) {
973         try {
974             if (isServiceConnected()) {
975                 return getTelecomService().getDefaultOutgoingPhoneAccount(uriScheme,
976                         mContext.getOpPackageName(), mContext.getAttributionTag());
977             }
978         } catch (RemoteException e) {
979             Log.e(TAG, "Error calling ITelecomService#getDefaultOutgoingPhoneAccount", e);
980         }
981         return null;
982     }
983 
984     /**
985      * Return the {@link PhoneAccount} which is the user-chosen default for making outgoing phone
986      * calls. This {@code PhoneAccount} will always be a member of the list which is returned from
987      * calling {@link #getCallCapablePhoneAccounts()}
988      * <p>
989      * Apps must be prepared for this method to return {@code null}, indicating that there currently
990      * exists no user-chosen default {@code PhoneAccount}.
991      * <p>
992      * The default dialer has access to use this method.
993      *
994      * @return The user outgoing phone account selected by the user, or {@code null} if there is no
995      * user selected outgoing {@link PhoneAccountHandle}.
996      */
997     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
getUserSelectedOutgoingPhoneAccount()998     public @Nullable PhoneAccountHandle getUserSelectedOutgoingPhoneAccount() {
999         try {
1000             if (isServiceConnected()) {
1001                 return getTelecomService().getUserSelectedOutgoingPhoneAccount(
1002                         mContext.getOpPackageName());
1003             }
1004         } catch (RemoteException e) {
1005             Log.e(TAG, "Error calling ITelecomService#getUserSelectedOutgoingPhoneAccount", e);
1006         }
1007         return null;
1008     }
1009 
1010     /**
1011      * Sets the user-chosen default {@link PhoneAccountHandle} for making outgoing phone calls.
1012      *
1013      * @param accountHandle The {@link PhoneAccountHandle} which will be used by default for making
1014      *                      outgoing voice calls, or {@code null} if no default is specified (the
1015      *                      user will be asked each time a call is placed in this case).
1016      * @hide
1017      */
1018     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
1019     @TestApi
1020     @SystemApi
setUserSelectedOutgoingPhoneAccount(@ullable PhoneAccountHandle accountHandle)1021     public void setUserSelectedOutgoingPhoneAccount(@Nullable PhoneAccountHandle accountHandle) {
1022         try {
1023             if (isServiceConnected()) {
1024                 getTelecomService().setUserSelectedOutgoingPhoneAccount(accountHandle);
1025             }
1026         } catch (RemoteException e) {
1027             Log.e(TAG, "Error calling ITelecomService#setUserSelectedOutgoingPhoneAccount");
1028         }
1029     }
1030 
1031     /**
1032      * Returns the current SIM call manager. Apps must be prepared for this method to return
1033      * {@code null}, indicating that there currently exists no SIM call manager {@link PhoneAccount}
1034      * for the default voice subscription.
1035      *
1036      * @return The phone account handle of the current sim call manager for the default voice
1037      * subscription.
1038      * @see SubscriptionManager#getDefaultVoiceSubscriptionId()
1039      */
getSimCallManager()1040     public PhoneAccountHandle getSimCallManager() {
1041         try {
1042             if (isServiceConnected()) {
1043                 return getTelecomService().getSimCallManager(
1044                         SubscriptionManager.getDefaultSubscriptionId());
1045             }
1046         } catch (RemoteException e) {
1047             Log.e(TAG, "Error calling ITelecomService#getSimCallManager");
1048         }
1049         return null;
1050     }
1051 
1052     /**
1053      * Returns current SIM call manager for the Telephony Subscription ID specified. Apps must be
1054      * prepared for this method to return {@code null}, indicating that there currently exists no
1055      * SIM call manager {@link PhoneAccount} for the subscription specified.
1056      *
1057      * @param subscriptionId The Telephony Subscription ID that the SIM call manager should be
1058      *                       queried for.
1059      * @return The phone account handle of the current sim call manager.
1060      * @see SubscriptionManager#getActiveSubscriptionInfoList()
1061      */
getSimCallManagerForSubscription(int subscriptionId)1062     public @Nullable PhoneAccountHandle getSimCallManagerForSubscription(int subscriptionId) {
1063         try {
1064             if (isServiceConnected()) {
1065                 return getTelecomService().getSimCallManager(subscriptionId);
1066             }
1067         } catch (RemoteException e) {
1068             Log.e(TAG, "Error calling ITelecomService#getSimCallManager");
1069         }
1070         return null;
1071     }
1072 
1073     /**
1074      * Returns the current SIM call manager for the user-chosen default Telephony Subscription ID
1075      * (see {@link SubscriptionManager#getDefaultSubscriptionId()}) and the specified user. Apps
1076      * must be prepared for this method to return {@code null}, indicating that there currently
1077      * exists no SIM call manager {@link PhoneAccount} for the default voice subscription.
1078      *
1079      * @return The phone account handle of the current sim call manager.
1080      *
1081      * @hide
1082      * @deprecated Use {@link #getSimCallManager()}.
1083      */
1084     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 119305590)
getSimCallManager(int userId)1085     public PhoneAccountHandle getSimCallManager(int userId) {
1086         try {
1087             if (isServiceConnected()) {
1088                 return getTelecomService().getSimCallManagerForUser(userId);
1089             }
1090         } catch (RemoteException e) {
1091             Log.e(TAG, "Error calling ITelecomService#getSimCallManagerForUser");
1092         }
1093         return null;
1094     }
1095 
1096     /**
1097      * Returns the current connection manager. Apps must be prepared for this method to return
1098      * {@code null}, indicating that there currently exists no Connection Manager
1099      * {@link PhoneAccount} for the default voice subscription.
1100      *
1101      * @return The phone account handle of the current connection manager.
1102      * @hide
1103      */
1104     @SystemApi
getConnectionManager()1105     public PhoneAccountHandle getConnectionManager() {
1106         return getSimCallManager();
1107     }
1108 
1109     /**
1110      * Returns a list of the {@link PhoneAccountHandle}s which can be used to make and receive phone
1111      * calls which support the specified URI scheme.
1112      * <P>
1113      * For example, invoking with {@code "tel"} will find all {@link PhoneAccountHandle}s which
1114      * support telephone calls (e.g. URIs such as {@code tel:555-555-1212}).  Invoking with
1115      * {@code "sip"} will find all {@link PhoneAccountHandle}s which support SIP calls (e.g. URIs
1116      * such as {@code sip:example@sipexample.com}).
1117      *
1118      * @param uriScheme The URI scheme.
1119      * @return A list of {@code PhoneAccountHandle} objects supporting the URI scheme.
1120      * @hide
1121      */
1122     @SystemApi
1123     @RequiresPermission(anyOf = {
1124             READ_PRIVILEGED_PHONE_STATE,
1125             android.Manifest.permission.READ_PHONE_STATE
1126     })
getPhoneAccountsSupportingScheme(String uriScheme)1127     public List<PhoneAccountHandle> getPhoneAccountsSupportingScheme(String uriScheme) {
1128         try {
1129             if (isServiceConnected()) {
1130                 return getTelecomService().getPhoneAccountsSupportingScheme(uriScheme,
1131                         mContext.getOpPackageName());
1132             }
1133         } catch (RemoteException e) {
1134             Log.e(TAG, "Error calling ITelecomService#getPhoneAccountsSupportingScheme", e);
1135         }
1136         return new ArrayList<>();
1137     }
1138 
1139 
1140     /**
1141      * Returns a list of {@link PhoneAccountHandle}s which can be used to make and receive phone
1142      * calls. The returned list includes only those accounts which have been explicitly enabled
1143      * by the user.
1144      *
1145      * Requires permission: {@link android.Manifest.permission#READ_PHONE_STATE}
1146      *
1147      * @see #EXTRA_PHONE_ACCOUNT_HANDLE
1148      * @return A list of {@code PhoneAccountHandle} objects.
1149      */
1150     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
getCallCapablePhoneAccounts()1151     public List<PhoneAccountHandle> getCallCapablePhoneAccounts() {
1152         return getCallCapablePhoneAccounts(false);
1153     }
1154 
1155     /**
1156      * Returns a list of {@link PhoneAccountHandle}s for self-managed {@link ConnectionService}s.
1157      * <p>
1158      * Self-Managed {@link ConnectionService}s have a {@link PhoneAccount} with
1159      * {@link PhoneAccount#CAPABILITY_SELF_MANAGED}.
1160      * <p>
1161      * Requires permission {@link android.Manifest.permission#READ_PHONE_STATE}, or that the caller
1162      * is the default dialer app.
1163      * <p>
1164      * A {@link SecurityException} will be thrown if a called is not the default dialer, or lacks
1165      * the {@link android.Manifest.permission#READ_PHONE_STATE} permission.
1166      *
1167      * @return A list of {@code PhoneAccountHandle} objects.
1168      */
1169     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
getSelfManagedPhoneAccounts()1170     public List<PhoneAccountHandle> getSelfManagedPhoneAccounts() {
1171         try {
1172             if (isServiceConnected()) {
1173                 return getTelecomService().getSelfManagedPhoneAccounts(mContext.getOpPackageName(),
1174                         mContext.getAttributionTag());
1175             }
1176         } catch (RemoteException e) {
1177             Log.e(TAG, "Error calling ITelecomService#getSelfManagedPhoneAccounts()", e);
1178         }
1179         return new ArrayList<>();
1180     }
1181 
1182     /**
1183      * Returns a list of {@link PhoneAccountHandle}s including those which have not been enabled
1184      * by the user.
1185      *
1186      * @param includeDisabledAccounts When {@code true}, disabled phone accounts will be included,
1187      *                                when {@code false}, only enabled phone accounts will be
1188      *                                included.
1189      * @return A list of {@code PhoneAccountHandle} objects.
1190      * @hide
1191      */
1192     @SystemApi
1193     @TestApi
1194     @RequiresPermission(READ_PRIVILEGED_PHONE_STATE)
getCallCapablePhoneAccounts( boolean includeDisabledAccounts)1195     public @NonNull List<PhoneAccountHandle> getCallCapablePhoneAccounts(
1196             boolean includeDisabledAccounts) {
1197         try {
1198             if (isServiceConnected()) {
1199                 return getTelecomService().getCallCapablePhoneAccounts(includeDisabledAccounts,
1200                         mContext.getOpPackageName(), mContext.getAttributionTag());
1201             }
1202         } catch (RemoteException e) {
1203             Log.e(TAG, "Error calling ITelecomService#getCallCapablePhoneAccounts(" +
1204                     includeDisabledAccounts + ")", e);
1205         }
1206         return new ArrayList<>();
1207     }
1208 
1209     /**
1210      *  Returns a list of all {@link PhoneAccount}s registered for the calling package.
1211      *
1212      * @return A list of {@code PhoneAccountHandle} objects.
1213      * @hide
1214      */
1215     @SystemApi
1216     @SuppressLint("Doclava125")
getPhoneAccountsForPackage()1217     public List<PhoneAccountHandle> getPhoneAccountsForPackage() {
1218         try {
1219             if (isServiceConnected()) {
1220                 return getTelecomService().getPhoneAccountsForPackage(mContext.getPackageName());
1221             }
1222         } catch (RemoteException e) {
1223             Log.e(TAG, "Error calling ITelecomService#getPhoneAccountsForPackage", e);
1224         }
1225         return null;
1226     }
1227 
1228     /**
1229      * Return the {@link PhoneAccount} for a specified {@link PhoneAccountHandle}. Object includes
1230      * resources which can be used in a user interface.
1231      *
1232      * @param account The {@link PhoneAccountHandle}.
1233      * @return The {@link PhoneAccount} object.
1234      */
getPhoneAccount(PhoneAccountHandle account)1235     public PhoneAccount getPhoneAccount(PhoneAccountHandle account) {
1236         try {
1237             if (isServiceConnected()) {
1238                 return getTelecomService().getPhoneAccount(account);
1239             }
1240         } catch (RemoteException e) {
1241             Log.e(TAG, "Error calling ITelecomService#getPhoneAccount", e);
1242         }
1243         return null;
1244     }
1245 
1246     /**
1247      * Returns a count of all {@link PhoneAccount}s.
1248      *
1249      * @return The count of {@link PhoneAccount}s.
1250      * @hide
1251      */
1252     @SystemApi
getAllPhoneAccountsCount()1253     public int getAllPhoneAccountsCount() {
1254         try {
1255             if (isServiceConnected()) {
1256                 return getTelecomService().getAllPhoneAccountsCount();
1257             }
1258         } catch (RemoteException e) {
1259             Log.e(TAG, "Error calling ITelecomService#getAllPhoneAccountsCount", e);
1260         }
1261         return 0;
1262     }
1263 
1264     /**
1265      * Returns a list of all {@link PhoneAccount}s.
1266      *
1267      * @return All {@link PhoneAccount}s.
1268      * @hide
1269      */
1270     @SystemApi
getAllPhoneAccounts()1271     public List<PhoneAccount> getAllPhoneAccounts() {
1272         try {
1273             if (isServiceConnected()) {
1274                 return getTelecomService().getAllPhoneAccounts();
1275             }
1276         } catch (RemoteException e) {
1277             Log.e(TAG, "Error calling ITelecomService#getAllPhoneAccounts", e);
1278         }
1279         return Collections.EMPTY_LIST;
1280     }
1281 
1282     /**
1283      * Returns a list of all {@link PhoneAccountHandle}s.
1284      *
1285      * @return All {@link PhoneAccountHandle}s.
1286      * @hide
1287      */
1288     @SystemApi
getAllPhoneAccountHandles()1289     public List<PhoneAccountHandle> getAllPhoneAccountHandles() {
1290         try {
1291             if (isServiceConnected()) {
1292                 return getTelecomService().getAllPhoneAccountHandles();
1293             }
1294         } catch (RemoteException e) {
1295             Log.e(TAG, "Error calling ITelecomService#getAllPhoneAccountHandles", e);
1296         }
1297         return Collections.EMPTY_LIST;
1298     }
1299 
1300     /**
1301      * Register a {@link PhoneAccount} for use by the system that will be stored in Device Encrypted
1302      * storage. When registering {@link PhoneAccount}s, existing registrations will be overwritten
1303      * if the {@link PhoneAccountHandle} matches that of a {@link PhoneAccount} which is already
1304      * registered. Once registered, the {@link PhoneAccount} is listed to the user as an option
1305      * when placing calls. The user may still need to enable the {@link PhoneAccount} within
1306      * the phone app settings before the account is usable.
1307      * <p>
1308      * A {@link SecurityException} will be thrown if an app tries to register a
1309      * {@link PhoneAccountHandle} where the package name specified within
1310      * {@link PhoneAccountHandle#getComponentName()} does not match the package name of the app.
1311      *
1312      * @param account The complete {@link PhoneAccount}.
1313      */
registerPhoneAccount(PhoneAccount account)1314     public void registerPhoneAccount(PhoneAccount account) {
1315         try {
1316             if (isServiceConnected()) {
1317                 getTelecomService().registerPhoneAccount(account);
1318             }
1319         } catch (RemoteException e) {
1320             Log.e(TAG, "Error calling ITelecomService#registerPhoneAccount", e);
1321         }
1322     }
1323 
1324     /**
1325      * Remove a {@link PhoneAccount} registration from the system.
1326      *
1327      * @param accountHandle A {@link PhoneAccountHandle} for the {@link PhoneAccount} to unregister.
1328      */
unregisterPhoneAccount(PhoneAccountHandle accountHandle)1329     public void unregisterPhoneAccount(PhoneAccountHandle accountHandle) {
1330         try {
1331             if (isServiceConnected()) {
1332                 getTelecomService().unregisterPhoneAccount(accountHandle);
1333             }
1334         } catch (RemoteException e) {
1335             Log.e(TAG, "Error calling ITelecomService#unregisterPhoneAccount", e);
1336         }
1337     }
1338 
1339     /**
1340      * Remove all Accounts that belong to the calling package from the system.
1341      * @hide
1342      */
1343     @SystemApi
1344     @SuppressLint("Doclava125")
clearPhoneAccounts()1345     public void clearPhoneAccounts() {
1346         clearAccounts();
1347     }
1348     /**
1349      * Remove all Accounts that belong to the calling package from the system.
1350      * @deprecated Use {@link #clearPhoneAccounts()} instead.
1351      * @hide
1352      */
1353     @SystemApi
1354     @SuppressLint("Doclava125")
clearAccounts()1355     public void clearAccounts() {
1356         try {
1357             if (isServiceConnected()) {
1358                 getTelecomService().clearAccounts(mContext.getPackageName());
1359             }
1360         } catch (RemoteException e) {
1361             Log.e(TAG, "Error calling ITelecomService#clearAccounts", e);
1362         }
1363     }
1364 
1365     /**
1366      * Remove all Accounts that belong to the specified package from the system.
1367      * @hide
1368      */
clearAccountsForPackage(String packageName)1369     public void clearAccountsForPackage(String packageName) {
1370         try {
1371             if (isServiceConnected() && !TextUtils.isEmpty(packageName)) {
1372                 getTelecomService().clearAccounts(packageName);
1373             }
1374         } catch (RemoteException e) {
1375             Log.e(TAG, "Error calling ITelecomService#clearAccountsForPackage", e);
1376         }
1377     }
1378 
1379 
1380     /**
1381      * @deprecated - Use {@link TelecomManager#getDefaultDialerPackage} to directly access
1382      *         the default dialer's package name instead.
1383      * @hide
1384      */
1385     @SystemApi
1386     @SuppressLint("Doclava125")
getDefaultPhoneApp()1387     public ComponentName getDefaultPhoneApp() {
1388         try {
1389             if (isServiceConnected()) {
1390                 return getTelecomService().getDefaultPhoneApp();
1391             }
1392         } catch (RemoteException e) {
1393             Log.e(TAG, "RemoteException attempting to get the default phone app.", e);
1394         }
1395         return null;
1396     }
1397 
1398     /**
1399      * Used to determine the currently selected default dialer package.
1400      *
1401      * @return package name for the default dialer package or null if no package has been
1402      *         selected as the default dialer.
1403      */
getDefaultDialerPackage()1404     public String getDefaultDialerPackage() {
1405         try {
1406             if (isServiceConnected()) {
1407                 return getTelecomService().getDefaultDialerPackage();
1408             }
1409         } catch (RemoteException e) {
1410             Log.e(TAG, "RemoteException attempting to get the default dialer package name.", e);
1411         }
1412         return null;
1413     }
1414 
1415     /**
1416      * Used to determine the currently selected default dialer package for a specific user.
1417      *
1418      * @param userHandle the user id to query the default dialer package for.
1419      * @return package name for the default dialer package or null if no package has been
1420      *         selected as the default dialer.
1421      * @hide
1422      */
1423     @SystemApi
1424     @TestApi
1425     @RequiresPermission(READ_PRIVILEGED_PHONE_STATE)
getDefaultDialerPackage(@onNull UserHandle userHandle)1426     public @Nullable String getDefaultDialerPackage(@NonNull UserHandle userHandle) {
1427         try {
1428             if (isServiceConnected()) {
1429                 return getTelecomService().getDefaultDialerPackageForUser(
1430                         userHandle.getIdentifier());
1431             }
1432         } catch (RemoteException e) {
1433             Log.e(TAG, "RemoteException attempting to get the default dialer package name.", e);
1434         }
1435         return null;
1436     }
1437 
1438     /**
1439      * Used to set the default dialer package.
1440      *
1441      * @param packageName to set the default dialer to, or {@code null} if the system provided
1442      *                    dialer should be used instead.
1443      *
1444      * @result {@code true} if the default dialer was successfully changed, {@code false} if
1445      *         the specified package does not correspond to an installed dialer, or is already
1446      *         the default dialer.
1447      *
1448      * Requires permission: {@link android.Manifest.permission#MODIFY_PHONE_STATE}
1449      * Requires permission: {@link android.Manifest.permission#WRITE_SECURE_SETTINGS}
1450      *
1451      * @hide
1452      * @deprecated Use
1453      * {@link android.app.role.RoleManager#addRoleHolderAsUser(String, String, int, UserHandle,
1454      * Executor, java.util.function.Consumer)} instead.
1455      * @removed
1456      */
1457     @SystemApi
1458     @Deprecated
1459     @RequiresPermission(allOf = {
1460             android.Manifest.permission.MODIFY_PHONE_STATE,
1461             android.Manifest.permission.WRITE_SECURE_SETTINGS})
setDefaultDialer(@ullable String packageName)1462     public boolean setDefaultDialer(@Nullable String packageName) {
1463         try {
1464             if (isServiceConnected()) {
1465                 return getTelecomService().setDefaultDialer(packageName);
1466             }
1467         } catch (RemoteException e) {
1468             Log.e(TAG, "RemoteException attempting to set the default dialer.", e);
1469         }
1470         return false;
1471     }
1472 
1473     /**
1474      * Determines the package name of the system-provided default phone app.
1475      *
1476      * @return package name for the system dialer package or {@code null} if no system dialer is
1477      *         preloaded.
1478      */
getSystemDialerPackage()1479     public @Nullable String getSystemDialerPackage() {
1480         try {
1481             if (isServiceConnected()) {
1482                 return getTelecomService().getSystemDialerPackage();
1483             }
1484         } catch (RemoteException e) {
1485             Log.e(TAG, "RemoteException attempting to get the system dialer package name.", e);
1486         }
1487         return null;
1488     }
1489 
1490     /**
1491      * Return whether a given phone number is the configured voicemail number for a
1492      * particular phone account.
1493      *
1494      * Requires permission: {@link android.Manifest.permission#READ_PHONE_STATE}
1495      *
1496      * @param accountHandle The handle for the account to check the voicemail number against
1497      * @param number The number to look up.
1498      */
1499     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
isVoiceMailNumber(PhoneAccountHandle accountHandle, String number)1500     public boolean isVoiceMailNumber(PhoneAccountHandle accountHandle, String number) {
1501         try {
1502             if (isServiceConnected()) {
1503                 return getTelecomService().isVoiceMailNumber(accountHandle, number,
1504                         mContext.getOpPackageName(), mContext.getAttributionTag());
1505             }
1506         } catch (RemoteException e) {
1507             Log.e(TAG, "RemoteException calling ITelecomService#isVoiceMailNumber.", e);
1508         }
1509         return false;
1510     }
1511 
1512     /**
1513      * Return the voicemail number for a given phone account.
1514      *
1515      * Requires permission: {@link android.Manifest.permission#READ_PHONE_STATE}
1516      *
1517      * @param accountHandle The handle for the phone account.
1518      * @return The voicemail number for the phone account, and {@code null} if one has not been
1519      *         configured.
1520      */
1521     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
getVoiceMailNumber(PhoneAccountHandle accountHandle)1522     public String getVoiceMailNumber(PhoneAccountHandle accountHandle) {
1523         try {
1524             if (isServiceConnected()) {
1525                 return getTelecomService().getVoiceMailNumber(accountHandle,
1526                         mContext.getOpPackageName(), mContext.getAttributionTag());
1527             }
1528         } catch (RemoteException e) {
1529             Log.e(TAG, "RemoteException calling ITelecomService#hasVoiceMailNumber.", e);
1530         }
1531         return null;
1532     }
1533 
1534     /**
1535      * Return the line 1 phone number for given phone account.
1536      *
1537      * <p>Requires Permission:
1538      *     {@link android.Manifest.permission#READ_SMS READ_SMS},
1539      *     {@link android.Manifest.permission#READ_PHONE_NUMBERS READ_PHONE_NUMBERS},
1540      *     or that the caller is the default SMS app for any API level.
1541      *     {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
1542      *     for apps targeting SDK API level 29 and below.
1543      *
1544      * @param accountHandle The handle for the account retrieve a number for.
1545      * @return A string representation of the line 1 phone number.
1546      */
1547     @SuppressAutoDoc // Blocked by b/72967236 - no support for carrier privileges or default SMS app
1548     @RequiresPermission(anyOf = {
1549             android.Manifest.permission.READ_PHONE_STATE,
1550             android.Manifest.permission.READ_SMS,
1551             android.Manifest.permission.READ_PHONE_NUMBERS
1552             }, conditional = true)
getLine1Number(PhoneAccountHandle accountHandle)1553     public String getLine1Number(PhoneAccountHandle accountHandle) {
1554         try {
1555             if (isServiceConnected()) {
1556                 return getTelecomService().getLine1Number(accountHandle,
1557                         mContext.getOpPackageName(), mContext.getAttributionTag());
1558             }
1559         } catch (RemoteException e) {
1560             Log.e(TAG, "RemoteException calling ITelecomService#getLine1Number.", e);
1561         }
1562         return null;
1563     }
1564 
1565     /**
1566      * Returns whether there is an ongoing phone call (can be in dialing, ringing, active or holding
1567      * states) originating from either a manager or self-managed {@link ConnectionService}.
1568      * <p>
1569      * Requires permission: {@link android.Manifest.permission#READ_PHONE_STATE}
1570      *
1571      * @return {@code true} if there is an ongoing call in either a managed or self-managed
1572      *      {@link ConnectionService}, {@code false} otherwise.
1573      */
1574     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
isInCall()1575     public boolean isInCall() {
1576         try {
1577             if (isServiceConnected()) {
1578                 return getTelecomService().isInCall(mContext.getOpPackageName(),
1579                         mContext.getAttributionTag());
1580             }
1581         } catch (RemoteException e) {
1582             Log.e(TAG, "RemoteException calling isInCall().", e);
1583         }
1584         return false;
1585     }
1586 
1587     /**
1588      * Returns whether there is an ongoing call originating from a managed
1589      * {@link ConnectionService}.  An ongoing call can be in dialing, ringing, active or holding
1590      * states.
1591      * <p>
1592      * If you also need to know if there are ongoing self-managed calls, use {@link #isInCall()}
1593      * instead.
1594      * <p>
1595      * Requires permission: {@link android.Manifest.permission#READ_PHONE_STATE}
1596      *
1597      * @return {@code true} if there is an ongoing call in a managed {@link ConnectionService},
1598      *      {@code false} otherwise.
1599      */
1600     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
isInManagedCall()1601     public boolean isInManagedCall() {
1602         try {
1603             if (isServiceConnected()) {
1604                 return getTelecomService().isInManagedCall(mContext.getOpPackageName(),
1605                         mContext.getAttributionTag());
1606             }
1607         } catch (RemoteException e) {
1608             Log.e(TAG, "RemoteException calling isInManagedCall().", e);
1609         }
1610         return false;
1611     }
1612 
1613     /**
1614      * Returns one of the following constants that represents the current state of Telecom:
1615      *
1616      * {@link TelephonyManager#CALL_STATE_RINGING}
1617      * {@link TelephonyManager#CALL_STATE_OFFHOOK}
1618      * {@link TelephonyManager#CALL_STATE_IDLE}
1619      *
1620      * Note that this API does not require the
1621      * {@link android.Manifest.permission#READ_PHONE_STATE} permission. This is intentional, to
1622      * preserve the behavior of {@link TelephonyManager#getCallState()}, which also did not require
1623      * the permission.
1624      *
1625      * Takes into consideration both managed and self-managed calls.
1626      *
1627      * @hide
1628      */
1629     @SystemApi
getCallState()1630     public @CallState int getCallState() {
1631         try {
1632             if (isServiceConnected()) {
1633                 return getTelecomService().getCallState();
1634             }
1635         } catch (RemoteException e) {
1636             Log.d(TAG, "RemoteException calling getCallState().", e);
1637         }
1638         return TelephonyManager.CALL_STATE_IDLE;
1639     }
1640 
1641     /**
1642      * Returns whether there currently exists is a ringing incoming-call.
1643      *
1644      * @return {@code true} if there is a managed or self-managed ringing call.
1645      * @hide
1646      */
1647     @SystemApi
1648     @RequiresPermission(anyOf = {
1649             READ_PRIVILEGED_PHONE_STATE,
1650             android.Manifest.permission.READ_PHONE_STATE
1651     })
isRinging()1652     public boolean isRinging() {
1653         try {
1654             if (isServiceConnected()) {
1655                 return getTelecomService().isRinging(mContext.getOpPackageName());
1656             }
1657         } catch (RemoteException e) {
1658             Log.e(TAG, "RemoteException attempting to get ringing state of phone app.", e);
1659         }
1660         return false;
1661     }
1662 
1663     /**
1664      * Ends the foreground call on the device.
1665      * <p>
1666      * If there is a ringing call, calling this method rejects the ringing call.  Otherwise the
1667      * foreground call is ended.
1668      * <p>
1669      * Requires permission {@link android.Manifest.permission#ANSWER_PHONE_CALLS}.
1670      * <p>
1671      * Note: this method CANNOT be used to end ongoing emergency calls and will return {@code false}
1672      * if an attempt is made to end an emergency call.
1673      *
1674      * @return {@code true} if there is a call which will be rejected or terminated, {@code false}
1675      * otherwise.
1676      * @deprecated Companion apps for wearable devices should use the {@link InCallService} API
1677      * instead.  Apps performing call screening should use the {@link CallScreeningService} API
1678      * instead.
1679      */
1680     @RequiresPermission(Manifest.permission.ANSWER_PHONE_CALLS)
1681     @Deprecated
endCall()1682     public boolean endCall() {
1683         try {
1684             if (isServiceConnected()) {
1685                 return getTelecomService().endCall(mContext.getPackageName());
1686             }
1687         } catch (RemoteException e) {
1688             Log.e(TAG, "Error calling ITelecomService#endCall", e);
1689         }
1690         return false;
1691     }
1692 
1693     /**
1694      * If there is a ringing incoming call, this method accepts the call on behalf of the user.
1695      *
1696      * If the incoming call is a video call, the call will be answered with the same video state as
1697      * the incoming call requests.  This means, for example, that an incoming call requesting
1698      * {@link VideoProfile#STATE_BIDIRECTIONAL} will be answered, accepting that state.
1699      *
1700      * Requires permission: {@link android.Manifest.permission#MODIFY_PHONE_STATE} or
1701      * {@link android.Manifest.permission#ANSWER_PHONE_CALLS}
1702      *
1703      * @deprecated Companion apps for wearable devices should use the {@link InCallService} API
1704      * instead.
1705      */
1706     //TODO: L-release - need to convert all invocation of ITelecmmService#answerRingingCall to use
1707     // this method (clockwork & gearhead).
1708     @RequiresPermission(anyOf =
1709             {Manifest.permission.ANSWER_PHONE_CALLS, Manifest.permission.MODIFY_PHONE_STATE})
1710     @Deprecated
acceptRingingCall()1711     public void acceptRingingCall() {
1712         try {
1713             if (isServiceConnected()) {
1714                 getTelecomService().acceptRingingCall(mContext.getPackageName());
1715             }
1716         } catch (RemoteException e) {
1717             Log.e(TAG, "Error calling ITelecomService#acceptRingingCall", e);
1718         }
1719     }
1720 
1721     /**
1722      * If there is a ringing incoming call, this method accepts the call on behalf of the user,
1723      * with the specified video state.
1724      *
1725      * Requires permission: {@link android.Manifest.permission#MODIFY_PHONE_STATE} or
1726      * {@link android.Manifest.permission#ANSWER_PHONE_CALLS}
1727      *
1728      * @param videoState The desired video state to answer the call with.
1729      * @deprecated Companion apps for wearable devices should use the {@link InCallService} API
1730      * instead.
1731      */
1732     @RequiresPermission(anyOf =
1733             {Manifest.permission.ANSWER_PHONE_CALLS, Manifest.permission.MODIFY_PHONE_STATE})
1734     @Deprecated
acceptRingingCall(int videoState)1735     public void acceptRingingCall(int videoState) {
1736         try {
1737             if (isServiceConnected()) {
1738                 getTelecomService().acceptRingingCallWithVideoState(
1739                         mContext.getPackageName(), videoState);
1740             }
1741         } catch (RemoteException e) {
1742             Log.e(TAG, "Error calling ITelecomService#acceptRingingCallWithVideoState", e);
1743         }
1744     }
1745 
1746     /**
1747      * Silences the ringer if a ringing call exists.
1748      * <p>
1749      * This method can only be relied upon to stop the ringtone for a call if the ringtone has
1750      * already started playing.  It is intended to handle use-cases such as silencing a ringing call
1751      * when the user presses the volume button during ringing.
1752      * <p>
1753      * If this method is called prior to when the ringtone begins playing, the ringtone will not be
1754      * silenced.  As such it is not intended as a means to avoid playing of a ringtone.
1755      * <p>
1756      * A dialer app which wants to have more control over ringtone playing should declare
1757      * {@link TelecomManager#METADATA_IN_CALL_SERVICE_RINGING} in the manifest entry for their
1758      * {@link InCallService} implementation to indicate that the app wants to be responsible for
1759      * playing the ringtone for all incoming calls.
1760      * <p>
1761      * Requires permission: {@link android.Manifest.permission#MODIFY_PHONE_STATE} or that the
1762      * app fills the dialer role (see {@link #getDefaultDialerPackage()}).
1763      */
1764     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
silenceRinger()1765     public void silenceRinger() {
1766         try {
1767             if (isServiceConnected()) {
1768                 getTelecomService().silenceRinger(mContext.getOpPackageName());
1769             }
1770         } catch (RemoteException e) {
1771             Log.e(TAG, "Error calling ITelecomService#silenceRinger", e);
1772         }
1773     }
1774 
1775     /**
1776      * Returns whether TTY is supported on this device.
1777      */
1778     @RequiresPermission(anyOf = {
1779             READ_PRIVILEGED_PHONE_STATE,
1780             android.Manifest.permission.READ_PHONE_STATE
1781     })
isTtySupported()1782     public boolean isTtySupported() {
1783         try {
1784             if (isServiceConnected()) {
1785                 return getTelecomService().isTtySupported(mContext.getOpPackageName(),
1786                         mContext.getAttributionTag());
1787             }
1788         } catch (RemoteException e) {
1789             Log.e(TAG, "RemoteException attempting to get TTY supported state.", e);
1790         }
1791         return false;
1792     }
1793 
1794     /**
1795      * Returns the current TTY mode of the device. For TTY to be on the user must enable it in
1796      * settings and have a wired headset plugged in.
1797      * Valid modes are:
1798      * - {@link TelecomManager#TTY_MODE_OFF}
1799      * - {@link TelecomManager#TTY_MODE_FULL}
1800      * - {@link TelecomManager#TTY_MODE_HCO}
1801      * - {@link TelecomManager#TTY_MODE_VCO}
1802      * @hide
1803      */
1804     @SystemApi
1805     @TestApi
1806     @RequiresPermission(READ_PRIVILEGED_PHONE_STATE)
getCurrentTtyMode()1807     public @TtyMode int getCurrentTtyMode() {
1808         try {
1809             if (isServiceConnected()) {
1810                 return getTelecomService().getCurrentTtyMode(mContext.getOpPackageName(),
1811                         mContext.getAttributionTag());
1812             }
1813         } catch (RemoteException e) {
1814             Log.e(TAG, "RemoteException attempting to get the current TTY mode.", e);
1815         }
1816         return TTY_MODE_OFF;
1817     }
1818 
1819     /**
1820      * Registers a new incoming call. A {@link ConnectionService} should invoke this method when it
1821      * has an incoming call. For managed {@link ConnectionService}s, the specified
1822      * {@link PhoneAccountHandle} must have been registered with {@link #registerPhoneAccount} and
1823      * the user must have enabled the corresponding {@link PhoneAccount}.  This can be checked using
1824      * {@link #getPhoneAccount}. Self-managed {@link ConnectionService}s must have
1825      * {@link android.Manifest.permission#MANAGE_OWN_CALLS} to add a new incoming call.
1826      * <p>
1827      * The incoming call you are adding is assumed to have a video state of
1828      * {@link VideoProfile#STATE_AUDIO_ONLY}, unless the extra value
1829      * {@link #EXTRA_INCOMING_VIDEO_STATE} is specified.
1830      * <p>
1831      * Once invoked, this method will cause the system to bind to the {@link ConnectionService}
1832      * associated with the {@link PhoneAccountHandle} and request additional information about the
1833      * call (See {@link ConnectionService#onCreateIncomingConnection}) before starting the incoming
1834      * call UI.
1835      * <p>
1836      * For a managed {@link ConnectionService}, a {@link SecurityException} will be thrown if either
1837      * the {@link PhoneAccountHandle} does not correspond to a registered {@link PhoneAccount} or
1838      * the associated {@link PhoneAccount} is not currently enabled by the user.
1839      * <p>
1840      * For a self-managed {@link ConnectionService}, a {@link SecurityException} will be thrown if
1841      * the {@link PhoneAccount} has {@link PhoneAccount#CAPABILITY_SELF_MANAGED} and the calling app
1842      * does not have {@link android.Manifest.permission#MANAGE_OWN_CALLS}.
1843      *
1844      * @param phoneAccount A {@link PhoneAccountHandle} registered with
1845      *            {@link #registerPhoneAccount}.
1846      * @param extras A bundle that will be passed through to
1847      *            {@link ConnectionService#onCreateIncomingConnection}.
1848      */
addNewIncomingCall(PhoneAccountHandle phoneAccount, Bundle extras)1849     public void addNewIncomingCall(PhoneAccountHandle phoneAccount, Bundle extras) {
1850         try {
1851             if (isServiceConnected()) {
1852                 if (extras != null && extras.getBoolean(EXTRA_IS_HANDOVER) &&
1853                         mContext.getApplicationContext().getApplicationInfo().targetSdkVersion >
1854                                 Build.VERSION_CODES.O_MR1) {
1855                     Log.e("TAG", "addNewIncomingCall failed. Use public api " +
1856                             "acceptHandover for API > O-MR1");
1857                     return;
1858                 }
1859                 getTelecomService().addNewIncomingCall(
1860                         phoneAccount, extras == null ? new Bundle() : extras);
1861             }
1862         } catch (RemoteException e) {
1863             Log.e(TAG, "RemoteException adding a new incoming call: " + phoneAccount, e);
1864         }
1865     }
1866 
1867     /**
1868      * Registers a new incoming conference. A {@link ConnectionService} should invoke this method
1869      * when it has an incoming conference. For managed {@link ConnectionService}s, the specified
1870      * {@link PhoneAccountHandle} must have been registered with {@link #registerPhoneAccount} and
1871      * the user must have enabled the corresponding {@link PhoneAccount}.  This can be checked using
1872      * {@link #getPhoneAccount}. Self-managed {@link ConnectionService}s must have
1873      * {@link android.Manifest.permission#MANAGE_OWN_CALLS} to add a new incoming call.
1874      * <p>
1875      * The incoming conference you are adding is assumed to have a video state of
1876      * {@link VideoProfile#STATE_AUDIO_ONLY}, unless the extra value
1877      * {@link #EXTRA_INCOMING_VIDEO_STATE} is specified.
1878      * <p>
1879      * Once invoked, this method will cause the system to bind to the {@link ConnectionService}
1880      * associated with the {@link PhoneAccountHandle} and request additional information about the
1881      * call (See {@link ConnectionService#onCreateIncomingConference}) before starting the incoming
1882      * call UI.
1883      * <p>
1884      * For a managed {@link ConnectionService}, a {@link SecurityException} will be thrown if either
1885      * the {@link PhoneAccountHandle} does not correspond to a registered {@link PhoneAccount} or
1886      * the associated {@link PhoneAccount} is not currently enabled by the user.
1887      *
1888      * @param phoneAccount A {@link PhoneAccountHandle} registered with
1889      *            {@link #registerPhoneAccount}.
1890      * @param extras A bundle that will be passed through to
1891      *            {@link ConnectionService#onCreateIncomingConference}.
1892      * @hide
1893      */
addNewIncomingConference(@onNull PhoneAccountHandle phoneAccount, @NonNull Bundle extras)1894     public void addNewIncomingConference(@NonNull PhoneAccountHandle phoneAccount,
1895             @NonNull Bundle extras) {
1896         try {
1897             if (isServiceConnected()) {
1898                 getTelecomService().addNewIncomingConference(
1899                         phoneAccount, extras == null ? new Bundle() : extras);
1900             }
1901         } catch (RemoteException e) {
1902             Log.e(TAG, "RemoteException adding a new incoming conference: " + phoneAccount, e);
1903         }
1904     }
1905 
1906     /**
1907      * Registers a new unknown call with Telecom. This can only be called by the system Telephony
1908      * service. This is invoked when Telephony detects a new unknown connection that was neither
1909      * a new incoming call, nor an user-initiated outgoing call.
1910      *
1911      * @param phoneAccount A {@link PhoneAccountHandle} registered with
1912      *            {@link #registerPhoneAccount}.
1913      * @param extras A bundle that will be passed through to
1914      *            {@link ConnectionService#onCreateIncomingConnection}.
1915      * @hide
1916      */
1917     @SystemApi
addNewUnknownCall(PhoneAccountHandle phoneAccount, Bundle extras)1918     public void addNewUnknownCall(PhoneAccountHandle phoneAccount, Bundle extras) {
1919         try {
1920             if (isServiceConnected()) {
1921                 getTelecomService().addNewUnknownCall(
1922                         phoneAccount, extras == null ? new Bundle() : extras);
1923             }
1924         } catch (RemoteException e) {
1925             Log.e(TAG, "RemoteException adding a new unknown call: " + phoneAccount, e);
1926         }
1927     }
1928 
1929     /**
1930      * Processes the specified dial string as an MMI code.
1931      * MMI codes are any sequence of characters entered into the dialpad that contain a "*" or "#".
1932      * Some of these sequences launch special behavior through handled by Telephony.
1933      * This method uses the default subscription.
1934      * <p>
1935      * Requires that the method-caller be set as the system dialer app.
1936      * </p>
1937      *
1938      * Requires permission: {@link android.Manifest.permission#MODIFY_PHONE_STATE}
1939      *
1940      * @param dialString The digits to dial.
1941      * @return True if the digits were processed as an MMI code, false otherwise.
1942      */
1943     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
handleMmi(String dialString)1944     public boolean handleMmi(String dialString) {
1945         ITelecomService service = getTelecomService();
1946         if (service != null) {
1947             try {
1948                 return service.handlePinMmi(dialString, mContext.getOpPackageName());
1949             } catch (RemoteException e) {
1950                 Log.e(TAG, "Error calling ITelecomService#handlePinMmi", e);
1951             }
1952         }
1953         return false;
1954     }
1955 
1956     /**
1957      * Processes the specified dial string as an MMI code.
1958      * MMI codes are any sequence of characters entered into the dialpad that contain a "*" or "#".
1959      * Some of these sequences launch special behavior through handled by Telephony.
1960      * <p>
1961      * Requires that the method-caller be set as the system dialer app.
1962      * </p>
1963      *
1964      * Requires permission: {@link android.Manifest.permission#MODIFY_PHONE_STATE}
1965      *
1966      * @param accountHandle The handle for the account the MMI code should apply to.
1967      * @param dialString The digits to dial.
1968      * @return True if the digits were processed as an MMI code, false otherwise.
1969      */
1970     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
handleMmi(String dialString, PhoneAccountHandle accountHandle)1971     public boolean handleMmi(String dialString, PhoneAccountHandle accountHandle) {
1972         ITelecomService service = getTelecomService();
1973         if (service != null) {
1974             try {
1975                 return service.handlePinMmiForPhoneAccount(accountHandle, dialString,
1976                         mContext.getOpPackageName());
1977             } catch (RemoteException e) {
1978                 Log.e(TAG, "Error calling ITelecomService#handlePinMmi", e);
1979             }
1980         }
1981         return false;
1982     }
1983 
1984     /**
1985      * Requires permission: {@link android.Manifest.permission#MODIFY_PHONE_STATE}
1986      *
1987      * @param accountHandle The handle for the account to derive an adn query URI for or
1988      * {@code null} to return a URI which will use the default account.
1989      * @return The URI (with the content:// scheme) specific to the specified {@link PhoneAccount}
1990      * for the the content retrieve.
1991      */
1992     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
getAdnUriForPhoneAccount(PhoneAccountHandle accountHandle)1993     public Uri getAdnUriForPhoneAccount(PhoneAccountHandle accountHandle) {
1994         ITelecomService service = getTelecomService();
1995         if (service != null && accountHandle != null) {
1996             try {
1997                 return service.getAdnUriForPhoneAccount(accountHandle, mContext.getOpPackageName());
1998             } catch (RemoteException e) {
1999                 Log.e(TAG, "Error calling ITelecomService#getAdnUriForPhoneAccount", e);
2000             }
2001         }
2002         return Uri.parse("content://icc/adn");
2003     }
2004 
2005     /**
2006      * Removes the missed-call notification if one is present.
2007      * <p>
2008      * Requires that the method-caller be set as the system dialer app.
2009      * </p>
2010      *
2011      * Requires permission: {@link android.Manifest.permission#MODIFY_PHONE_STATE}
2012      */
2013     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
cancelMissedCallsNotification()2014     public void cancelMissedCallsNotification() {
2015         ITelecomService service = getTelecomService();
2016         if (service != null) {
2017             try {
2018                 service.cancelMissedCallsNotification(mContext.getOpPackageName());
2019             } catch (RemoteException e) {
2020                 Log.e(TAG, "Error calling ITelecomService#cancelMissedCallsNotification", e);
2021             }
2022         }
2023     }
2024 
2025     /**
2026      * Brings the in-call screen to the foreground if there is an ongoing call. If there is
2027      * currently no ongoing call, then this method does nothing.
2028      * <p>
2029      * Requires that the method-caller be set as the system dialer app or have the
2030      * {@link android.Manifest.permission#READ_PHONE_STATE} permission.
2031      * </p>
2032      *
2033      * @param showDialpad Brings up the in-call dialpad as part of showing the in-call screen.
2034      */
2035     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
showInCallScreen(boolean showDialpad)2036     public void showInCallScreen(boolean showDialpad) {
2037         ITelecomService service = getTelecomService();
2038         if (service != null) {
2039             try {
2040                 service.showInCallScreen(showDialpad, mContext.getOpPackageName(),
2041                         mContext.getAttributionTag());
2042             } catch (RemoteException e) {
2043                 Log.e(TAG, "Error calling ITelecomService#showCallScreen", e);
2044             }
2045         }
2046     }
2047 
2048     /**
2049      * Places a new outgoing call to the provided address using the system telecom service with
2050      * the specified extras.
2051      *
2052      * This method is equivalent to placing an outgoing call using {@link Intent#ACTION_CALL},
2053      * except that the outgoing call will always be sent via the system telecom service. If
2054      * method-caller is either the user selected default dialer app or preloaded system dialer
2055      * app, then emergency calls will also be allowed.
2056      *
2057      * Placing a call via a managed {@link ConnectionService} requires permission:
2058      * {@link android.Manifest.permission#CALL_PHONE}
2059      *
2060      * Usage example:
2061      * <pre>
2062      * Uri uri = Uri.fromParts("tel", "12345", null);
2063      * Bundle extras = new Bundle();
2064      * extras.putBoolean(TelecomManager.EXTRA_START_CALL_WITH_SPEAKERPHONE, true);
2065      * telecomManager.placeCall(uri, extras);
2066      * </pre>
2067      *
2068      * The following keys are supported in the supplied extras.
2069      * <ul>
2070      *   <li>{@link #EXTRA_OUTGOING_CALL_EXTRAS}</li>
2071      *   <li>{@link #EXTRA_PHONE_ACCOUNT_HANDLE}</li>
2072      *   <li>{@link #EXTRA_START_CALL_WITH_SPEAKERPHONE}</li>
2073      *   <li>{@link #EXTRA_START_CALL_WITH_VIDEO_STATE}</li>
2074      * </ul>
2075      * <p>
2076      * An app which implements the self-managed {@link ConnectionService} API uses
2077      * {@link #placeCall(Uri, Bundle)} to inform Telecom of a new outgoing call.  A self-managed
2078      * {@link ConnectionService} must include {@link #EXTRA_PHONE_ACCOUNT_HANDLE} to specify its
2079      * associated {@link android.telecom.PhoneAccountHandle}.
2080      *
2081      * Self-managed {@link ConnectionService}s require permission
2082      * {@link android.Manifest.permission#MANAGE_OWN_CALLS}.
2083      *
2084      * <p class="note"><strong>Note:</strong> If this method is used to place an emergency call, it
2085      * is not guaranteed that the call will be placed on the {@link PhoneAccount} provided in
2086      * the {@link #EXTRA_PHONE_ACCOUNT_HANDLE} extra (if specified) and may be placed on another
2087      * {@link PhoneAccount} with the {@link PhoneAccount#CAPABILITY_PLACE_EMERGENCY_CALLS}
2088      * capability, depending on external factors, such as network conditions and Modem/SIM status.
2089      * </p>
2090      *
2091      * @param address The address to make the call to.
2092      * @param extras Bundle of extras to use with the call.
2093      */
2094     @RequiresPermission(anyOf = {android.Manifest.permission.CALL_PHONE,
2095             android.Manifest.permission.MANAGE_OWN_CALLS})
placeCall(Uri address, Bundle extras)2096     public void placeCall(Uri address, Bundle extras) {
2097         ITelecomService service = getTelecomService();
2098         if (service != null) {
2099             if (address == null) {
2100                 Log.w(TAG, "Cannot place call to empty address.");
2101             }
2102             try {
2103                 service.placeCall(address, extras == null ? new Bundle() : extras,
2104                         mContext.getOpPackageName(), mContext.getAttributionTag());
2105             } catch (RemoteException e) {
2106                 Log.e(TAG, "Error calling ITelecomService#placeCall", e);
2107             }
2108         }
2109     }
2110 
2111 
2112     /**
2113      * Place a new conference call with the provided participants using the system telecom service
2114      * This method doesn't support placing of emergency calls.
2115      *
2116      * An adhoc conference call is established by providing a list of addresses to
2117      * {@code TelecomManager#startConference(List<Uri>, int videoState)} where the
2118      * {@link ConnectionService} is responsible for connecting all indicated participants
2119      * to a conference simultaneously.
2120      * This is in contrast to conferences formed by merging calls together (e.g. using
2121      * {@link android.telecom.Call#mergeConference()}).
2122      *
2123      * The following keys are supported in the supplied extras.
2124      * <ul>
2125      *   <li>{@link #EXTRA_PHONE_ACCOUNT_HANDLE}</li>
2126      *   <li>{@link #EXTRA_START_CALL_WITH_SPEAKERPHONE}</li>
2127      *   <li>{@link #EXTRA_START_CALL_WITH_VIDEO_STATE}</li>
2128      * </ul>
2129      *
2130      * @param participants List of participants to start conference with
2131      * @param extras Bundle of extras to use with the call
2132      * @hide
2133      */
2134     @RequiresPermission(android.Manifest.permission.CALL_PHONE)
startConference(@onNull List<Uri> participants, @NonNull Bundle extras)2135     public void startConference(@NonNull List<Uri> participants,
2136             @NonNull Bundle extras) {
2137         ITelecomService service = getTelecomService();
2138         if (service != null) {
2139             try {
2140                 service.startConference(participants, extras,
2141                         mContext.getOpPackageName());
2142             } catch (RemoteException e) {
2143                 Log.e(TAG, "Error calling ITelecomService#placeCall", e);
2144             }
2145         }
2146     }
2147 
2148     /**
2149      * Enables and disables specified phone account.
2150      *
2151      * @param handle Handle to the phone account.
2152      * @param isEnabled Enable state of the phone account.
2153      * @hide
2154      */
2155     @SystemApi
2156     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
enablePhoneAccount(PhoneAccountHandle handle, boolean isEnabled)2157     public void enablePhoneAccount(PhoneAccountHandle handle, boolean isEnabled) {
2158         ITelecomService service = getTelecomService();
2159         if (service != null) {
2160             try {
2161                 service.enablePhoneAccount(handle, isEnabled);
2162             } catch (RemoteException e) {
2163                 Log.e(TAG, "Error enablePhoneAbbount", e);
2164             }
2165         }
2166     }
2167 
2168     /**
2169      * Dumps telecom analytics for uploading.
2170      *
2171      * @return
2172      * @hide
2173      */
2174     @SystemApi
2175     @RequiresPermission(Manifest.permission.DUMP)
dumpAnalytics()2176     public TelecomAnalytics dumpAnalytics() {
2177         ITelecomService service = getTelecomService();
2178         TelecomAnalytics result = null;
2179         if (service != null) {
2180             try {
2181                 result = service.dumpCallAnalytics();
2182             } catch (RemoteException e) {
2183                 Log.e(TAG, "Error dumping call analytics", e);
2184             }
2185         }
2186         return result;
2187     }
2188 
2189     /**
2190      * Creates the {@link Intent} which can be used with {@link Context#startActivity(Intent)} to
2191      * launch the activity to manage blocked numbers.
2192      * <p> The activity will display the UI to manage blocked numbers only if
2193      * {@link android.provider.BlockedNumberContract#canCurrentUserBlockNumbers(Context)} returns
2194      * {@code true} for the current user.
2195      */
createManageBlockedNumbersIntent()2196     public Intent createManageBlockedNumbersIntent() {
2197         ITelecomService service = getTelecomService();
2198         Intent result = null;
2199         if (service != null) {
2200             try {
2201                 result = service.createManageBlockedNumbersIntent();
2202             } catch (RemoteException e) {
2203                 Log.e(TAG, "Error calling ITelecomService#createManageBlockedNumbersIntent", e);
2204             }
2205         }
2206         return result;
2207     }
2208 
2209 
2210     /**
2211      * Creates the {@link Intent} which can be used with {@link Context#startActivity(Intent)} to
2212      * launch the activity for emergency dialer.
2213      *
2214      * @param number Optional number to call in emergency dialer
2215      * @hide
2216      */
2217     @SystemApi
2218     @TestApi
2219     @NonNull
createLaunchEmergencyDialerIntent(@ullable String number)2220     public Intent createLaunchEmergencyDialerIntent(@Nullable String number) {
2221         ITelecomService service = getTelecomService();
2222         if (service != null) {
2223             try {
2224                 return service.createLaunchEmergencyDialerIntent(number);
2225             } catch (RemoteException e) {
2226                 Log.e(TAG, "Error createLaunchEmergencyDialerIntent", e);
2227             }
2228         } else {
2229             Log.w(TAG, "createLaunchEmergencyDialerIntent - Telecom service not available.");
2230         }
2231 
2232         // Telecom service knows the package name of the expected emergency dialer package; if it
2233         // is not available, then fallback to not targeting a specific package.
2234         Intent intent = new Intent(Intent.ACTION_DIAL_EMERGENCY);
2235         if (!TextUtils.isEmpty(number) && TextUtils.isDigitsOnly(number)) {
2236             intent.setData(Uri.fromParts(PhoneAccount.SCHEME_TEL, number, null));
2237         }
2238         return intent;
2239     }
2240 
2241     /**
2242      * Determines whether Telecom would permit an incoming call to be added via the
2243      * {@link #addNewIncomingCall(PhoneAccountHandle, Bundle)} API for the specified
2244      * {@link PhoneAccountHandle}.
2245      * <p>
2246      * A {@link ConnectionService} may not add a call for the specified {@link PhoneAccountHandle}
2247      * in the following situations:
2248      * <ul>
2249      *     <li>{@link PhoneAccount} does not have property
2250      *     {@link PhoneAccount#CAPABILITY_SELF_MANAGED} set (i.e. it is a managed
2251      *     {@link ConnectionService}), and the active or held call limit has
2252      *     been reached.</li>
2253      *     <li>There is an ongoing emergency call.</li>
2254      * </ul>
2255      *
2256      * @param phoneAccountHandle The {@link PhoneAccountHandle} the call will be added for.
2257      * @return {@code true} if telecom will permit an incoming call to be added, {@code false}
2258      *      otherwise.
2259      */
isIncomingCallPermitted(PhoneAccountHandle phoneAccountHandle)2260     public boolean isIncomingCallPermitted(PhoneAccountHandle phoneAccountHandle) {
2261         if (phoneAccountHandle == null) {
2262             return false;
2263         }
2264 
2265         ITelecomService service = getTelecomService();
2266         if (service != null) {
2267             try {
2268                 return service.isIncomingCallPermitted(phoneAccountHandle);
2269             } catch (RemoteException e) {
2270                 Log.e(TAG, "Error isIncomingCallPermitted", e);
2271             }
2272         }
2273         return false;
2274     }
2275 
2276     /**
2277      * Determines whether Telecom would permit an outgoing call to be placed via the
2278      * {@link #placeCall(Uri, Bundle)} API for the specified {@link PhoneAccountHandle}.
2279      * <p>
2280      * A {@link ConnectionService} may not place a call for the specified {@link PhoneAccountHandle}
2281      * in the following situations:
2282      * <ul>
2283      *     <li>{@link PhoneAccount} does not have property
2284      *     {@link PhoneAccount#CAPABILITY_SELF_MANAGED} set (i.e. it is a managed
2285      *     {@link ConnectionService}), and the active, held or ringing call limit has
2286      *     been reached.</li>
2287      *     <li>{@link PhoneAccount} has property {@link PhoneAccount#CAPABILITY_SELF_MANAGED} set
2288      *     (i.e. it is a self-managed {@link ConnectionService} and there is an ongoing call in
2289      *     another {@link ConnectionService}.</li>
2290      *     <li>There is an ongoing emergency call.</li>
2291      * </ul>
2292      *
2293      * @param phoneAccountHandle The {@link PhoneAccountHandle} the call will be added for.
2294      * @return {@code true} if telecom will permit an outgoing call to be placed, {@code false}
2295      *      otherwise.
2296      */
isOutgoingCallPermitted(PhoneAccountHandle phoneAccountHandle)2297     public boolean isOutgoingCallPermitted(PhoneAccountHandle phoneAccountHandle) {
2298         ITelecomService service = getTelecomService();
2299         if (service != null) {
2300             try {
2301                 return service.isOutgoingCallPermitted(phoneAccountHandle);
2302             } catch (RemoteException e) {
2303                 Log.e(TAG, "Error isOutgoingCallPermitted", e);
2304             }
2305         }
2306         return false;
2307     }
2308 
2309     /**
2310      * Called by an app to indicate that it wishes to accept the handover of an ongoing call to a
2311      * {@link PhoneAccountHandle} it defines.
2312      * <p>
2313      * A call handover is the process where an ongoing call is transferred from one app (i.e.
2314      * {@link ConnectionService} to another app.  The user could, for example, choose to continue a
2315      * mobile network call in a video calling app.  The mobile network call via the Telephony stack
2316      * is referred to as the source of the handover, and the video calling app is referred to as the
2317      * destination.
2318      * <p>
2319      * When considering a handover scenario the <em>initiating</em> device is where a user initiated
2320      * the handover process (e.g. by calling {@link android.telecom.Call#handoverTo(
2321      * PhoneAccountHandle, int, Bundle)}, and the other device is considered the <em>receiving</em>
2322      * device.
2323      * <p>
2324      * For a full discussion of the handover process and the APIs involved, see
2325      * {@link android.telecom.Call#handoverTo(PhoneAccountHandle, int, Bundle)}.
2326      * <p>
2327      * This method is called from the <em>receiving</em> side of a handover to indicate a desire to
2328      * accept the handover of an ongoing call to another {@link ConnectionService} identified by
2329      * {@link PhoneAccountHandle} destAcct. For managed {@link ConnectionService}s, the specified
2330      * {@link PhoneAccountHandle} must have been registered with {@link #registerPhoneAccount} and
2331      * the user must have enabled the corresponding {@link PhoneAccount}.  This can be checked using
2332      * {@link #getPhoneAccount}. Self-managed {@link ConnectionService}s must have
2333      * {@link android.Manifest.permission#MANAGE_OWN_CALLS} to handover a call to it.
2334      * <p>
2335      * Once invoked, this method will cause the system to bind to the {@link ConnectionService}
2336      * associated with the {@link PhoneAccountHandle} destAcct and call
2337      * (See {@link ConnectionService#onCreateIncomingHandoverConnection}).
2338      * <p>
2339      * For a managed {@link ConnectionService}, a {@link SecurityException} will be thrown if either
2340      * the {@link PhoneAccountHandle} destAcct does not correspond to a registered
2341      * {@link PhoneAccount} or the associated {@link PhoneAccount} is not currently enabled by the
2342      * user.
2343      * <p>
2344      * For a self-managed {@link ConnectionService}, a {@link SecurityException} will be thrown if
2345      * the calling app does not have {@link android.Manifest.permission#MANAGE_OWN_CALLS}.
2346      *
2347      * @param srcAddr The {@link android.net.Uri} of the ongoing call to handover to the caller’s
2348      *                {@link ConnectionService}.
2349      * @param videoState Video state after the handover.
2350      * @param destAcct The {@link PhoneAccountHandle} registered to the calling package.
2351      */
acceptHandover(Uri srcAddr, @VideoProfile.VideoState int videoState, PhoneAccountHandle destAcct)2352     public void acceptHandover(Uri srcAddr, @VideoProfile.VideoState int videoState,
2353             PhoneAccountHandle destAcct) {
2354         try {
2355             if (isServiceConnected()) {
2356                 getTelecomService().acceptHandover(srcAddr, videoState, destAcct);
2357             }
2358         } catch (RemoteException e) {
2359             Log.e(TAG, "RemoteException acceptHandover: " + e);
2360         }
2361     }
2362 
2363     /**
2364      * Determines if there is an ongoing emergency call.  This can be either an outgoing emergency
2365      * call, as identified by the dialed number, or because a call was identified by the network
2366      * as an emergency call.
2367      * @return {@code true} if there is an ongoing emergency call, {@code false} otherwise.
2368      * @hide
2369      */
2370     @SystemApi
2371     @TestApi
2372     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
isInEmergencyCall()2373     public boolean isInEmergencyCall() {
2374         try {
2375             if (isServiceConnected()) {
2376                 return getTelecomService().isInEmergencyCall();
2377             }
2378         } catch (RemoteException e) {
2379             Log.e(TAG, "RemoteException isInEmergencyCall: " + e);
2380             return false;
2381         }
2382         return false;
2383     }
2384 
2385     /**
2386      * Handles {@link Intent#ACTION_CALL} intents trampolined from UserCallActivity.
2387      * @param intent The {@link Intent#ACTION_CALL} intent to handle.
2388      * @param callingPackageProxy The original package that called this before it was trampolined.
2389      * @hide
2390      */
handleCallIntent(Intent intent, String callingPackageProxy)2391     public void handleCallIntent(Intent intent, String callingPackageProxy) {
2392         try {
2393             if (isServiceConnected()) {
2394                 getTelecomService().handleCallIntent(intent, callingPackageProxy);
2395             }
2396         } catch (RemoteException e) {
2397             Log.e(TAG, "RemoteException handleCallIntent: " + e);
2398         }
2399     }
2400 
getTelecomService()2401     private ITelecomService getTelecomService() {
2402         if (mTelecomServiceOverride != null) {
2403             return mTelecomServiceOverride;
2404         }
2405         return ITelecomService.Stub.asInterface(ServiceManager.getService(Context.TELECOM_SERVICE));
2406     }
2407 
isServiceConnected()2408     private boolean isServiceConnected() {
2409         boolean isConnected = getTelecomService() != null;
2410         if (!isConnected) {
2411             Log.w(TAG, "Telecom Service not found.");
2412         }
2413         return isConnected;
2414     }
2415 }
2416