I have a problem with T.38 fax termination. I am running AsteriskNOW with 184.108.40.206. I have the following setup
FAX --> PSTN --> ISDN/BRI --> Patton SN4554 --> SIP/T.38 --> Asterisk
The Patton GW does fax autodetection, and is configured for T.38 fax relay. The problem is that the call starts with G711, and after a few seconds fax detection triggers a re-INVITE with T.38. Asterisk reply with "488 Not available here" and the call terminates (successfully) with G711. It means fax termination works, but only with G711, not T.38.
I have "t38pt_udptl=yes" in both sip->[general] and in my Patton trunk. I have tried different combinations of "t38pt_rtp / t38pt_tcp = yes / no"
I have a full console debug as well as PCAP available.
Thanks for any help. Regards. - Patrick -