SIP/10-08231968 answered SIP/5060-0823a2b0
[Feb  5 19:23:11] DEBUG[24237]: chan_sip.c:6217 add_t38_sdp: T.38 UDPTL is at 212.36.72.173 port 4865
[Feb  5 19:23:11] DEBUG[24237]: chan_sip.c:6223 add_t38_sdp: Our T38 capability (3872), peer T38 capability (32), joint capability (32)