20 Feb
2018
20 Feb
'18
3:13 p.m.
For a retarded endpoint (an old ISDN PBX behind a Smartnode) I need to insert a 180 reply before sending a 183 (with SDP), otherwise the PBX fails to playback the inband audio to the caller behind the PBX.
I can't find hints on how to do this. uac_req_send() can be used to start a new transaction, but I only need to generate a 180 based on the 183 in the on_reply route.
Current Q&D hack is to send a 180 on the initial INVITE, works but not ideal.