[asterisk-users] Dropping incompatible voice frame

[Adam Robins]

Thanks,  placing:

Disallow=all
Allow=ulaw

In the specific iaxy device context fixed it.  I had always thought that
allowing all possible valid codecs under the general context would work
and the devices would sort it out upon handshake.  Guess not.



-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Steven J.
Douglas
Sent: Wednesday, January 28, 2009 9:24 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Dropping incompatible voice frame

Don't use g729 in the iax.conf for the IAXY device. It doesn't support
it.

Regards,
Steve

Adam Robins wrote:
> I am using a Polycom SIP phone (ext 2042) to call an analog phone
> connected via an IAXY (ext 2120).  The analog phone rings, and when I
> answer, I can hear the person speaking on the SIP phone, but they
cannot
> hear me.  However, if I originate the call from the analog phone to
the
> SIP phone, it works just fine.
>
> In SIP.conf:
> Disallow=all
> Allow=g729
> Allow=ulaw
> Canreinvite=no
>
> In IAX.conf:
> Disallow=all
> Allow=ulaw
> Allow=g729
> Transfer=no
> Codecpriority=host
>
> CLI shows:
>
> [Jan 28 16:04:31] VERBOSE[3428] logger.c: [Jan 28 16:04:31]     --
> Executing [2120 at international:1] Dial("SIP/2042-b7b0cc88",
> "IAX2/2120|12|oWwtT") in new stack
> [Jan 28 16:04:31] VERBOSE[3428] logger.c: [Jan 28 16:04:31]     --
> Called 2120
> [Jan 28 16:04:31] VERBOSE[21750] logger.c: [Jan 28 16:04:31]     --
Call
> accepted by 192.168.2.61 (format ulaw)
> [Jan 28 16:04:31] VERBOSE[21750] logger.c: [Jan 28 16:04:31]     --
> Format for call is ulaw
> [Jan 28 16:04:31] VERBOSE[3428] logger.c: [Jan 28 16:04:31]     --
> IAX2/2120-3849 is ringing
> [Jan 28 16:04:33] VERBOSE[3428] logger.c: [Jan 28 16:04:33]     --
> IAX2/2120-3849 answered SIP/2042-b7b0cc88
> [Jan 28 16:04:33] NOTICE[3428] channel.c: Dropping incompatible voice
> frame on IAX2/2120-3849 of format g729 since our native format has
> changed to 0x4 (ulaw)
> [Jan 28 16:04:41] VERBOSE[3428] logger.c: [Jan 28 16:04:41]     --
> Hungup 'IAX2/2120-3849'
>
> This is Asterisk 1.4.22, but it also happened on 1.2.4.  If I call an
> IAX2/ulaw softphone from the SIP phone, it works fine.  Could it be
> something in the IAXY provisioning?
>
> Any ideas are appreciated.  Thanks.
>
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