Hi, I am experimenting with trunkfreq parameter. When it is 20ms I can see both parties in IAX session sending IAX frames every 20ms. When I modify this parameter to 40ms then I can see that only server that initiated IAX connection works properly (i.e. sends IAX frames every 40ms while other side still sends IAX frames at 20ms per frame rate). I disabled jitter buffers on both sides and I use speex codec.
Here is tcp dump of IAX traffic: 23:26:45.972072 IP SERVER_A.62142 > SERVER_B.4569: UDP, length 58 23:26:45.976295 IP SERVER_B.4569 > SERVER_A.62142: UDP, length 25 23:26:45.996264 IP SERVER_B.4569 > SERVER_A.62142: UDP, length 25 23:26:46.006742 IP SERVER_A.62142 > SERVER_B.4569: UDP, length 58 23:26:46.016270 IP SERVER_B.4569 > SERVER_A.62142: UDP, length 25 23:26:46.036254 IP SERVER_B.4569 > SERVER_A.62142: UDP, length 25 23:26:46.047891 IP SERVER_A.62142 > SERVER_B.4569: UDP, length 58 23:26:46.056248 IP SERVER_B.4569 > SERVER_A.62142: UDP, length 25 23:26:46.076286 IP SERVER_B.4569 > SERVER_A.62142: UDP, length 25 23:26:46.091255 IP SERVER_A.62142 > SERVER_B.4569: UDP, length 58 23:26:46.096262 IP SERVER_B.4569 > SERVER_A.62142: UDP, length 25 23:26:46.116243 IP SERVER_B.4569 > SERVER_A.62142: UDP, length 25 23:26:46.127494 IP SERVER_A.62142 > SERVER_B.4569: UDP, length 58 23:26:46.136242 IP SERVER_B.4569 > SERVER_A.62142: UDP, length 25 SERVER_A initiates connection while SERVER_B answers. SERVER_A iax.conf file =================================================== [SERVER_B] disallow=all allow=speex jitterbuffer=no dropcount=2 maxjitterbuffer=200 maxexcessbuffer=100 minexcessbuffer=60 jittershrinkrate=1 trunkfreq=40 ; How frequently to send trunk msgs (in ms) context = foo secret=zYX9VUt auth=md5 type=friend host=SERVER_B_IP_ADDRESS trunk=yes SERVER_B iax.conf file =================================================== [SERVER_B] disallow=all allow=speex jitterbuffer=no dropcount=2 maxjitterbuffer=200 maxexcessbuffer=100 minexcessbuffer=60 jittershrinkrate=1 trunkfreq=40 ; How frequently to send trunk msgs (in ms) context = default secret=zYX9V auth=md5 type=friend host=SERVER_B_IP_ADDRESS trunk=yes Any idea as to why trunking frequency is not symmetrical? Any help is appreciated _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users