| /* | |
| * Copyright (C) 2016 The Android Open Source Project | |
| * | |
| * Licensed under the Apache License, Version 2.0 (the "License"); | |
| * you may not use this file except in compliance with the License. | |
| * You may obtain a copy of the License at | |
| * | |
| * http://www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, software | |
| * distributed under the License is distributed on an "AS IS" BASIS, | |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| * See the License for the specific language governing permissions and | |
| * limitations under the License | |
| */ | |
| /** | |
| * The Android Telecom framework is responsible for managing calls on an Android device. This can | |
| * include SIM-based calls using the {@code Telephony} framework, VOIP calls using SIP (e.g. the | |
| * {@code SipConnectionService}), or via a third-party VOIP | |
| * {@link android.telecom.ConnectionService}. Telecom acts as a switchboard, routing calls and | |
| * audio focus between {@link android.telecom.Connection}s provided by | |
| * {@link android.telecom.ConnectionService} implementations, and | |
| * {@link android.telecom.InCallService} implementations which provide a user interface for calls. | |
| * <p> | |
| * Android supports the following calling use cases (with increasing level of complexity): | |
| * <ul> | |
| * <li>Implement the self-managed {@link android.telecom.ConnectionService} API - this is ideal | |
| * for developers of standalone calling apps which do not wish to show their calls within the | |
| * default phone app, and do not wish to have other calls shown in their user interface. Using | |
| * a self-managed {@link android.telecom.ConnectionService} implementation within your | |
| * standalone calling app helps you ensure that your app will interoperate not only with native | |
| * telephony calling on the device, but also other standalone calling apps implementing this | |
| * API. It also manages audio routing and focus for you.</li> | |
| * <li>Implement the managed {@link android.telecom.ConnectionService} API - facilitates | |
| * development of a calling solution that relies on the existing device phone application (see | |
| * {@link android.telecom.TelecomManager#getDefaultDialerPackage()}) to provide the user | |
| * interface for calls. An example might be a third party implementation of SIP calling, or a | |
| * VOIP calling service. A {@link android.telecom.ConnectionService} alone provides only the | |
| * means of connecting calls, but has no associated user interface.</li> | |
| * <li>Implement the {@link android.telecom.InCallService} API - facilitates development of a | |
| * replacement for the device's default Phone/Dialer app. The | |
| * {@link android.telecom.InCallService} alone does not have any calling capability and consists | |
| * of the user-interface side of calling only. An {@link android.telecom.InCallService} must | |
| * handle all Calls the Telecom framework is aware of. It must not make assumptions about the | |
| * nature of the calls (e.g. assuming calls are SIM-based telephony calls), and should not | |
| * implement calling restrictions based on any one {@link android.telecom.ConnectionService} | |
| * (e.g. it should not enforce Telephony restrictions for video calls).</li> | |
| * <li>Implement both the {@link android.telecom.InCallService} and | |
| * {@link android.telecom.ConnectionService} API - ideal if you wish to create your own | |
| * {@link android.telecom.ConnectionService} based calling solution, complete with its own | |
| * full user interface, while showing all other Android calls in the same user interface. Using | |
| * this approach, you must still ensure that your {@link android.telecom.InCallService} makes | |
| * no assumption about the source of the calls it displays. You must also ensure that your | |
| * {@link android.telecom.ConnectionService} implementation can still function without the | |
| * default phone app being set to your custom {@link android.telecom.InCallService}.</li> | |
| * </ul> | |
| */ | |
| package android.telecom; |