This is your phones fault. Notice in the SDP it doesn't negotiate telephoney-event so we have nothing to clue us in on that it does 2833 or info. So in reality you should go beat the creator of this phone to death for not doing something about this. (btw info draft expired and IS NOT a standard). BUT you can relax now.. set the sofia profile option 'liberal-dtmf' to true.... NEXT!!! /b PS: BKW-1 updated with latest info. On Feb 16, 2012, at 6:11 AM, Piyush Sharma wrote:
Thanks for Response Michael, This is the capture of wireshark
INVITE sip:3333@192.168.4.18:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.4.244:5065;branch=z9hG4bK9268238112493813801;rport From: 30000 <sip:30000@192.168.4.18:5060>;tag=1653316119 To: "3333" <sip:3333@192.168.4.18:5060> Call-ID: 188371401128256-63249236018@192.168.4.244 CSeq: 1 INVITE Contact: <sip:30000@192.168.4.244:5065> Max-Forwards: 70 Supported: replaces, join, path User-Agent: Voip Phone 1.0 Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 185
v=0 o=30000 24630637 15149730 IN IP4 192.168.4.244 s=A conversation c=IN IP4 192.168.4.244 t=0 0 m=audio 10006 RTP/AVP 8 0 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=sendrecv
-- Brian West FreeSWITCH Solutions, LLC Phone: +1 (918) 420-9266 Fax: +1 (918) 420-9267 brian@freeswitch.org http://www.freeswitch.org