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