[Asterisk-Users] Problem with IAX2 jitterbuffer and DTMF reception with 1.2.0

[Bryan Boatright]

I've noticed that if I enable the jitterbuffer in iax.conf with Asterisk 
1.2.0 that Asterisk stops responding to incoming DTMF frames for calls 
between Teliax and my server.  I've used "iax2 debug" and Ethereal to 
confirm that Teliax is, in fact, sending the frames.

I only have two IAX2 connections (one a softphone on my local network 
and the Teliax registration).  The softphone does not experience the 
problem (DTMF frames sent from the softphone to * are recognized with 
the jitter buffer enabled).

Everything else about the connection with Teliax is fine when the jitter 
buffer is enabled.

"iax2 show channels" reports a 40 ms delay with the Teliax connection.

Any ideas?

My iax.conf is:

[general]
bandwidth=low
jitterbuffer=no  ; setting this to yes causes DTMF frames from Teliax to 
be ignored (for my server anyway), apparently
forcejitterbuffer=no


register => 
XXXXXXXXXXXXXXXXXX:XXXXXXXXXXX at voip-co3.teliax.com                 

tos=lowdelay
autokill=yes



[bboatrig]
type=friend
host=dynamic
context=default
auth=md5,rsa,plaintext
secret=XXXXXXXXXX
callerid="Laptop" <7020>
accountcode=bboatrig0

[teliax]
context=incoming-voip-trusted
type=friend
host=voip-co3.teliax.com
auth=md5
secret=XXXXXXXXXXXXXXXXXXXXX
disallow=all
allow=ulaw
allow=alaw
allow=gsm