I tested all again. No matter if span=1,1,0 or span=1,0,0 if I configure jitterbufer=4 I have glitches that I'm almost sure that are "holes" in audio.
If I raise jitterbufer=16 the problem disappear (or becames impercetible). Anyway I am interested in understand what is happening. > Your issue is very likely the size of the zaptel jitterbuffers setting. If the zaptel driver is not > immediately available to accept a frame of data it places it in an internal queue of pending writes. > If that queue is full then the write is refused by the zaptel layer and then silently discarded by > chan_zap causing a gap in the audio once it is played out of the zaptel card. If you crank up the > debug level you will probably see 'Write returned -1...' (aka. EAGAIN) debugs that mostly correlate to > the pops and clicks. Note that the zaptel driver legitimatly (if perhaps not appropriately) also > refuses data when the channel is muted, such as during DTMF generation and at other times, so not > _all_ EAGAIN debugs are a sign of problems. This makes perfect sense but again some issues of the problem do not match. I set debug at level 9 and there is no message of errors. Another thing I do not understand is why the same configuration: PAP2 <-> LAN <-> Asterisk <-> TE100P works perfect, and instead of LAN using internet generates the problem. Shouldn't it be the same for both configs? The only difference I see is that the rtp packets came from another Ethernet card, but if I call to terminate calls with another carrier using that eth works fine. What is clear is that jitterbuffer=16 corrects the problem. One more thing: no matter what codec I use, G729 or G711 the sound clicks are almost the same. Is anyway I could debug at RTP level in asterisk to see what is happening and check if there is packet loose? Thanks Alejandro _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users