asterisk users - Mar 2006 - Problem with intermittent one-way audio

Hi,

I have a 1.2.4 asterisk box at a remote location, which is using IAX2 to
connect to a 1.2.5 box for PSTN. There are 15 users on the remote
server, all connecting via SIP softphones.

For some reason, there is an increasing number of calls where the callee
 does not get any audio although the caller can hear them perfectly.
This happens between 5% and 10% of the time. If they hang up and call
again, it usually works.

I have tried both with trunk=yes, and trunk=no but they are still having
the problem. The debug log has a lot of the following, but not much else
to go on.

Mar 20 19:26:37 DEBUG[26754] chan_iax2.c: Received VNAK: resending
outstanding frames
Mar 20 19:26:37 DEBUG[26754] chan_iax2.c: Received VNAK: resending
outstanding frames
Mar 20 19:26:37 DEBUG[26754] chan_iax2.c: Received VNAK: resending
outstanding frames
Mar 20 19:26:37 DEBUG[26754] chan_iax2.c: Received iseqno 18 not within
window 19->19

Any help much appreciated.

-- 

-Barry Flanagan

Barry Flanagan wrote:
> Hi,
>
> I have a 1.2.4 asterisk box at a remote location, which is using IAX2 to
> connect to a 1.2.5 box for PSTN. There are 15 users on the remote
> server, all connecting via SIP softphones.
>
> For some reason, there is an increasing number of calls where the callee
>  does not get any audio although the caller can hear them perfectly.
>   
I've had this problem in the past, when not running the same version of 
Asterisk on both ends of the trunk.

Doug

I am having this problem also. I have 2 systems running 1.2.5. I had the
problem and one system was running 1.2.4 and the other was running a CVS
HEAD from October so I upgraded them both to 1.2.5 with no success. 

-Jonathan
> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com] On Behalf Of Barry Flanagan
> Sent: Monday, March 20, 2006 2:28 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [Asterisk-Users] Problem with intermittent one-way audio
> 
> Hi,
> 
> I have a 1.2.4 asterisk box at a remote location, which is using IAX2
to
> connect to a 1.2.5 box for PSTN. There are 15 users on the remote
> server, all connecting via SIP softphones.
> 
> For some reason, there is an increasing number of calls where the
callee
>  does not get any audio although the caller can hear them perfectly.
> This happens between 5% and 10% of the time. If they hang up and call
> again, it usually works.
> 
> I have tried both with trunk=yes, and trunk=no but they are still
having
> the problem. The debug log has a lot of the following, but not much
else
> to go on.
> 
> Mar 20 19:26:37 DEBUG[26754] chan_iax2.c: Received VNAK: resending
> outstanding frames
> Mar 20 19:26:37 DEBUG[26754] chan_iax2.c: Received VNAK: resending
> outstanding frames
> Mar 20 19:26:37 DEBUG[26754] chan_iax2.c: Received VNAK: resending
> outstanding frames
> Mar 20 19:26:37 DEBUG[26754] chan_iax2.c: Received iseqno 18 not
within
> window 19->19
> 
> Any help much appreciated.
> 
> --
> 
> -Barry Flanagan
> _______________________________________________
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