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I have a scenario that i’d like to implement, and don’t know where to begin.
I’d like to have 3 participants on a phone call: A, B and C.
A and C should be able to talk to and hear each other.
B should be able to hear A, but not C. B doesn’t need to speak to anyone
Is there a way that I can implement this with SIP servers, freeswitch, asterisk or online services such as twilio/tropo?
Is there a name for such a scenario in telephony where you isolate the voices of one or more callers?
Thanks
It is known as call barge and is used in monitoring call center agents.
You can do it using the asterisk ChanSpy command:
http://www.voip-info.org/wiki/view/Asterisk+cmd+ChanSpy