> >> Yep, I've seen it and from reading http://www.voxilla.com it's a > >> pretty common problem. > >> > >> If you turn on debugging what you'll see is that the Sipura has > >> mistakenly detected a DTMF code in the audio stream and is relaying it > >> by repeating the signal (very loudly I might add) > >> > >> So this appears to be a bug in the most current firmware. I've > >> reported it to Sipura including the debug output. Maybe more people > >> should do the same. > > > >You'd think that switching to RFC2833 DTMF would fix that. > > That is actually the problem. It thinks it hears DTMF so it sends an > out-of band signal. The other end receives this and produces the > audible tone. > > Switching to in-band fixes it. Well, works around it. :)
I might add that in my spa3k config, incoming pstn calls are sent directly to the fxs port (with no * involvement). Certain voices trigger the tones as noted. However, switching to in-band would obviously not impact the pstn->fxs disturbances. To bad they haven't provided some sort of tone detection timer that could be increased a little to reduce the disturbances. _______________________________________________ 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