Is it possible to configure Asterisk so that it sends RTP packets with audio from the receiver before the remote party actually picks up?
This seems to be required for a VoIP compliance test my setup needs to pass. They use a simulator to test this, and when I call the other party, they pick up the receiver without sending an OK. I can hear audio from the other side, but they cannot hear me. I've looked into
prematuremedia but none of those accomplishes what I need. Is it even doable with Asterisk?
Asterisk registers to a SIP trunk, hardware SIP phones are registered to Asterisk. Outbound calls go through the SIP trunk. Asterisk version: 1.8.11.
NoOP(test) Progress() SayAlpha(asdf) Wait(20) ...This give audio in both directions without establishing the call. Still not sure what is needed to get it working when calling an actual remote party.