[Asterisk-Users] Beeps during Sip to Sip phone calls

[Daryll Strauss]

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.

- |Daryll