Try setting that in your sip profile: <param name="rtp-autofix-timing" value="false" />
Thats a feature to work around with devices lying about their ptime in their sdp payload. Mathieu Rene Avant-Garde Solutions Inc Office: + 1 (514) 664-1044 x100 Cell: +1 (514) 664-1044 x200 [email protected] On 21-Aug-09, at 11:38 AM, Peter P GMX wrote: > Hello Michael, > > I made some tests with Freeswitch and Fritzbox and found by > Wireshark that: > within one call > > * Freeswitch starts sending 20msec packets, then after ~0,2 second > sends 30msec packets > * FritzBox always sends 30msec packets. > > The average jitter is below 2 msec in both directions. > > The below logs shows that Freeswitch considers the FritzBox to be > broken > and starts using 30msec packets. But there is no SIP message from FS > to > Fritzbox telling him that FB will use 30msec packets. SDP from FS to > Fritzbox always shows ptime:20 > > BTW: We can ship you a FritzBox if you need one for testing. > > Best regards > Peter > > > Log: > > 2009-08-21 17:15:50.271555 [DEBUG] switch_rtp.c:1138 Starting timer > [soft] 160 bytes per 20ms > 2009-08-21 17:15:50.281563 [INFO] mod_sofia.c:1499 Ring SDP: > v=0 > o=FreeSWITCH 1250837460 1250837461 IN IP4 182.xxx.xx.xxx > s=FreeSWITCH > c=IN IP4 182.xxx.xx.xxx > t=0 0 > m=audio 30290 RTP/AVP 8 101 > a=rtpmap:8 PCMA/8000 > a=rtpmap:101 telephone-event/8000 > a=fmtp:101 0-16 > a=silenceSupp:off - - - - > a=ptime:20 > a=sendrecv > > 2009-08-21 17:15:50.281563 [NOTICE] mod_sofia.c:1502 Pre-Answer > sofia/internal/[email protected]! > 2009-08-21 17:15:50.281563 [DEBUG] switch_core_session.c:630 Send > signal > sofia/internal/[email protected] [BREAK] > EXECUTE sofia/internal/[email protected] > playback(voicemail/8000/vm-that_was_an_invalid_ext.wav) > 2009-08-21 17:15:50.281563 [DEBUG] switch_ivr_play_say.c:1097 Codec > Activated l...@8000hz 1 channels 20ms > 2009-08-21 17:15:50.281563 [DEBUG] sofia.c:3302 Channel > sofia/internal/[email protected] entering state [early][183] > 2009-08-21 17:15:50.281563 [DEBUG] switch_core_io.c:649 > sofia/internal/[email protected] receive message > [TRANSCODING_NECESSARY] > 2009-08-21 17:15:50.531551 [WARNING] mod_sofia.c:799 We were told to > use > ptime 20 but what they meant to say was 30 > This issue has so far been identified to happen on the following > broken > platforms/devices: > Linksys/Sipura aka Cisco > ShoreTel > Sonus/L3 > We will try to fix it but some of the devices on this list are so > broken > who knows what will happen.. > > > > > > > _______________________________________________ > FreeSWITCH-users mailing list > [email protected] > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > http://www.freeswitch.org _______________________________________________ FreeSWITCH-users mailing list [email protected] http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
