Let me explain the scenario. I have an asterisk server having inbound and outbound trunk with twilio. When twilio sends SIP INVITE to our asterisk platform, it calls STASSIS_START on ARI App configured in the dial plan. Our ARI application then originates another call via outbound sip trunk. It needs to send a custom header in outgoing SIP INVITE so I use ADDHEADER0 in arguments. It works successfully and I am able to send custom header in outgoing SIP INVITE. When destination number answers the call, I simply bridge both the channels.
Now the problem is, There is custom header in ‘183 session in progress’ from SIP server. and I am unable to find any way to get that custom header ?
Your ideas appreciated.