[Asterisk-Users] SIP Codec selection order

[Alex Ovcharenko]

I have the following situation:

my cisco 7940 attached to asterisk
i use asterisk as voice mail, conference room, music on hold and so on.

also i have cisco 5350 and use it as PSTN gateway.
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As i know asterisk able to forward g729 frame.
I enable in asterisk sip,conf   options allow=g729 .
and on cisco 5350i specified use only  G729. (because  i have restricted 
bandwidth to it).
also i know that asterisk voice mail working fine  with gsm, alaw, ulaw 
codecs.
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Now i able to call from 7940 to 5350 . Call established with codec g729.
But when i call to voice mail my call failed with the reason specified 
below:
Feb 22 02:21:28 NOTICE[-1336095824]: channel.c:1453 ast_set_write_format: 
Unable to find a path from GSM to G729A
Feb 22 02:21:28 WARNING[-1336095824]: file.c:734 ast_streamfile: Unable to 
open vm-login (format G729A): No such file or directory
Feb 22 02:21:28 WARNING[-1336095824]: app_voicemail.c:2714 vm_execmain: 
Couldn't stream login file

any idea how i can make voicemail working with 7940 and g729 forwarding 
enabled.

Alexey

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