Hello all, We've now ran into a softpone that delivers RFC-2833 DTMF but these are not detected by PJSIP. I've checked the capture file, but it seems OK and the RTP EVENT for each digit (5x)? are clearly available. Unfortunately I do not have a PJSIP log... Analyse of capture (also attached) In the capture file, softphone send 4 digits ?1#11? to address ?192.168.7.37? (=PJSIP). Per 1 digit, SMP send 5 RTP EVENT message packets (3 packets as end of event). <Analyze Capture file> ? No. 849 16.650584 ?RTP EVENT ?DTMF one 1? / Volume:10 Duration:160 No. 851 16.670548 ?RTP EVENT ?DTMF one 1? / Volume:10 Duration:320 No. 853 16.690538 ?RTP EVENT ?DTMF one 1? / Volume:10 Duration:480 <end> No. 854 16.710545? RTP EVENT ?DTMF one 1? / Volume:10 Duration:640 <end> No. 857 16.730459 ?RTP EVENT ?DTMF one 1? / Volume:10 Duration:800 <end> ? No.1021 18.120451 RTP EVENT ?DTMF pound ?#? / Volume:10 Duration:160 No.1025 18.142150 RTP EVENT ?DTMF pound ?#? / Volume:10 Duration:320 No.1026 18.160693 RTP EVENT ?DTMF pound ?#? / Volume:10 Duration:480 <end> No.1029 18.180540 RTP EVENT ?DTMF pound ?#? / Volume:10 Duration:640 <end> No.1031 18.200590 RTP EVENT ?DTMF pound ?#? / Volume:10 Duration:800 <end> ... No.1547 22.560559 RTP EVENT ?DTMF one 1? / Volume:10 Duration:160 No.1550 22.580562 RTP EVENT ?DTMF one 1? / Volume:10 Duration:320 No.1552 22.600475 RTP EVENT ?DTMF one 1? / Volume:10 Duration:480 <end> No.1553 22.620496 RTP EVENT ?DTMF one 1? / Volume:10 Duration:640 <end> No.1555 22.640520 RTP EVENT ?DTMF one 1? / Volume:10 Duration:800 <end> ? No.1595 22.870524 RTP EVENT ?DTMF one 1? / Volume:10 Duration:160 No.1597 22.890534 RTP EVENT ?DTMF one 1? / Volume:10 Duration:320 No.1599 22.910481 RTP EVENT ?DTMF one 1? / Volume:10 Duration:480 <end> No.1600 22.930452 RTP EVENT ?DTMF one 1? / Volume:10 Duration:640 <end> No.1601 22.950491 RTP EVENT ?DTMF one 1? / Volume:10 Duration:800 <end> </ Analyze > Are you guys have any clue? I'm not sure, but could it be that PJSIP requires 3x RTP EVENT (non <end>) to initiate a detection trigger? I think I read that some time ago in the mailing list archive. If that is the cause, where this is specified in RFC? With regards, Eize Slange -------------- next part -------------- A non-text attachment was scrubbed... Name: capture.pcap Type: application/octet-stream Size: 283768 bytes Desc: not available URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20111104/80cae780/attachment-0001.pcap>
