[asterisk-users] G.729 codec in pass-thru mode

[Matthew J. Roth]

Kamlesh Kumar wrote:
>
> Call even doesn't go to the ITSP. I tried without AGI script and the results
> were same.


Kamlesh,

Your first message stated that the call is successful if the codec is u-law, so
there must be communication between the Asterisk server and the ITSP.  The key
to understanding why the G.729 call fails is in this SIP signaling.

How are you capturing the SIP trace?  Are you enabling SIP debugging for the
specific SIP softphone?  If so, please use "sip set debug on" to enable it for
all SIP packets.  Then wait until there are no other calls on the Asterisk
server, try another G.729 call, and post the CLI output.

Regards,

Matthew Roth
InterMedia Marketing Solutions
Software Engineer and Systems Developer