[asterisk-users] g729a compatibility

[Elliot Murdock]

Hello Andres!

Yes, you are correct that the general section defines the default codecs.

However, why when disallow and allow are commented out, does Asterisk
allow gsm, ulaw, alaw, and h263, but not g729?  If the Asterisk
default (ie. when disallow and allow are commented out in the general
section) is to disallow all, then disallw gsm, ulaw, and alaw too.  If
the default is to allow all, then allow also g729.

It seems the Asterisk default is picking and choosing allowing codecs.
 Some clarity with this would be great!

Thanks,
Elliot








On Sun, Jul 5, 2009 at 7:01 AM, Andres<andres at telesip.net> wrote:
> Elliot Murdock wrote:
>
>>Hello Again!
>>
>>I'm back again.  I just checked the general settings in sip.conf and
>>noticed that both the "disallow" and "allow" parameters are commented
>>out.  I would assume this would allow all codecs, but this does not
>>seem so.
>>
>>With this setup (ie both "disallow" and "allow" commented out),
>>Asterisk allows only gsm, ulaw, alaw, h263 as stated as follows:
>>
>> [Jul  2 16:56:26] VERBOSE[13420] logger.c: Capabilities: us - 0x8000e
>>(gsm|ulaw|alaw|h263), peer - audio=0x100 (g729)/video=0x0 (nothing),
>>combined - 0x0 (nothing)
>>
>>When the setup is changed to disallow=all, and allow=alaw, allow=ulaw,
>>and allow=g729 only then does Asterisk allow consider g729 as a usable
>>codec.
>>
>>So are my suspicions correct  that by default, Asterisk only allows
>>gsm, ulaw, alaw, and H263 and one needs explicitly allow also g729?
>>
>>
>>
> Thats what the [general] section in sip.conf is for.  You define your
> default codecs there.
>
> Andres
> http://www.neuroredes.com
>
>>Thanks you,
>>Elliot
>>
>>
>>
>
>
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