So i've been having some issues with faxing (already posted a thread about that), i was using 711 for faxing but i'm looking to enable T.38 now. I'm on MT 18.104.22.168.
I have t38pt_udptl=yes in sip.conf
in each trunk i can see T.38 support Yes and the same in each user extension.
My upstream supports T.38 but when i attempt to send them a fax via the portal it always defaults to 711, looking at capture i cant asterisk offering T.38 at all.
Is there setting i'm missing here?