[Asterisk-Users] Outgoing Calls

[Martin Joseph]

On Nov 23, 2005, at 11:14 AM, Michael wrote:

> I am trying to route my calls through an outside IAX provider.  I am 
> having a problem with which codec to use.  The only way I have 
> successfully been able to make an outgoing call is if i do:
>
>   disallow=all
>    allow=g729
>
>  in the sip.conf file (for my phones) and the iax.conf file.  The 
> second I add one more codec to that list, for instance:
>
>   disallow=all
>    allow=g729
>    allow=ulaw
>
>  I get the following error in the CLI:
>
>   Nov 23 10:56:35 NOTICE[3799]: channel.c:1703 ast_set_write_format: 
> Unable to find a path from ulaw to g729
>    Nov 23 10:56:35 NOTICE[3799]: channel.c:1736 ast_set_read_format: 
> Unable to find a path from g729 to ulaw
>
<snip>

Asterisk cannot translate from other codecs to g729 UNLESS you buy a 
license for that technology.  It can pass g729 along though.  it looks 
like your service provider "plainvoice" only supports G729?

I am a newb though so take this with a BIG grain of salt.

Marty