Call Accepted signal a control signal transmitted by the called equipment to indicate that it accepts an incoming call.
呼叫接受的信号被叫设备发出的控制信号，表明正在接收入局呼叫。
To support the multimedia operation and supply the function such as call building and session control, the signal protocol is absolutely necessarily.
为了支持多媒体业务，提供呼叫建立、会话控制、接纳控制等功能的信令协议必不可少。
To support the multimedia operation and supply the function such as call building and session control, the signal protocol is absolutely necessarily.
为了支持多媒体业务，提供呼叫建立、会话控制、接纳控制等功能的信令协议必不可少。
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