Asterisk ChanSpy solution

Question

I need to be able to have caller A be connected to B in Asterisk, and then caller C be able to call another number to listen in on the conversation between A and B. However, A needs to have the option to be muted from C hearing his side of the conversation ie. in that situation C will only be able to hear B. I have this all working with Asterisk ChanSpy except that the ChanSpy 'o' option mutes B, and not A. How can I prevent C from listening to A, but still listen to B ?

Answer 1

Every bridged call in asterisk have 2 channel associcated.

You can control in chanspy which one channel you want to listen. So use it(see ChanSpy doc for more info, no way help you without your dialplan).

Answer 2

It sounds like you need to target the other channel with ChanSpy and use the o option. If that's not possible, you might try capital W, but this would enable caller C to talk to A but not hear him.

From the docs:

W - Enable private whisper mode, so the spying channel can talk to the spied-on channel but cannot listen to that channel.

Since you probably don't want caller A to hear caller C (which this option would permit), you might use VOLUME to "mute" caller C. (untested, try AGC if VOLUME doesn't work)

exten => 1,1,Set(VOLUME(tx)=0)