[asterisk-users] Audio when a call is on hold.

[AC]

Hi All,

When asterisk bridges a call between 2 peers and peer-A's user puts the call
on hold, then peer-A sends a INVITE with recvonly in the SDP. Asterisk
responds to peer-A with sendonly in the SDP and asterisk sends an INVITE to
peer-B with recvonly in the SDP. Peer-B then responds with a sendonly in the
SDP.

I've noticed in the above scenario that peer-B contiutes to send audio to
peer-A. What is the point in having audio from peer-B to peer-A as the user
at peer-A has put the phone on hold?

Alternatively, in the above scenario is it possible for me to either:
1) generate MOH music to peer-B and send no audio to peer-A, or
2) not allow peer-B to send audio to peer-A until the user returns to the
call and I get a INVITE with sendrecv from peer-A?

Thanks,
AC
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