Is T.38 fax work through Asterisk? I have the config below in my sip.conf, but the fax doesn't work and give me the CLI lines below. My current version is 1.2.10. Please help.<br><br>[Inboundtopbx]<br>type=friend<br>context=pbx<br>host=10.18.188.84<br>insecure=port<br>dtmfmode=rfc2833<br>canreinvite=no<br>disallow=all<br>allow=g729<br>allow=ulaw<br>t38pt_udptl=yes<br>t38pt_rtp=no<br>t38pt_tcp=no<br><br>[OutboundfromPBX]<br>type=peer<br>host=10.18.161.222 <br>canreinvite=no<br>dtmfmode=rfc2833<br>disallow=all<br>allow=g729<br>qualify=yes<br>t38pt_udptl=yes<br>t38pt_rtp=no<br>t38pt_tcp=no<br><br><-- SIP read from 10.18.188.84:50096: <br>ACK sip:17815057304@10.18.161.237:5060 SIP/2.0<br>Via: SIP/2.0/UDP 10.18.188.84:5060<br>From: <sip:7350@10.18.188.84>;tag=19D429E8-2084<br>To: <sip:17815057304@10.18.161.237>;tag=as3c87a22e<br>Date: Tue, 05 Sep 2006 19:42:28 GMT<br>Call-ID:
7F23A1F9-3C4D11DB-A303B82B-9F58A83F@10.18.188.84<br>Max-Forwards: 6<br>Content-Length: 0<br>CSeq: 101 ACK<br><br><br>--- (9 headers 0 lines)---<br>Sep 5 15:30:31 NOTICE[25233]: rtp.c:564 ast_rtp_read: Unknown RTP codec 100 received<br>Sep 5 15:30:32 NOTICE[25233]: rtp.c:564 ast_rtp_read: Unknown RTP codec 100 received<br>Sep 5 15:30:32 NOTICE[25233]: rtp.c:564 ast_rtp_read: Unknown RTP codec 100 received<br>Sep 5 15:30:32 NOTICE[25233]: rtp.c:564 ast_rtp_read: Unknown RTP codec 100 received<br>Sep 5 15:30:34 WARNING[6839]: chan_sip.c:3475 process_sdp: Unknown SDP media type in offer: image 16406 udptl t38<br><p> 
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