H.323 Softswitch
It is the main device that captures and controls all the signals created by the entire system. It also supports multimedia: real-time audio, video and data information.
This is a way of communicating on the half-duplex communication line, includes receiving and transmitting devices (walkie-talkie) by the way of pressing the button for switching to the voice mode or transition to the listening mode. It works as a radio speaker; one can talk by pressing the button and can listen to a voice message by releasing the button.
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