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.
The function is available in some telephone networks and it allows
receiving the other call at the moment of the actual conversation by the method
of setting the active call in the waiting mode or cancellation. This will let
not to miss an important call and to agree upon time when it will be possible
to call back.
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