I’m trying to send fax through sip trunk, using Asterisk version 15.4.0. If I don’t use stasis, everything works fine, the trunk switch receives a T.38 re-invite from destination and sends that to load-balancer, it goes to source switch, gets 200-OK response and the process of sending fax begins. But if I bring ARI in, after receiving
T.38 re-invite, trunk switch responses with “488 Not acceptable here”.
What’s the problem and how can I fix it?
I attached 2 log files, one for working part, and another for not working part, and also sip.conf and extensions.conf files.