asterisk users - Oct 2009 - Is there a way to force a codec on an incoming sip uri call?

Hello,

I'd like to implement some public sip uri's that poeple can call into  
and get an echo test.  Is there a way to force a codec so that users  
can test various codecs?

Something like:

echo-test at example.com (negotiates whatever codec, is there a way to  
figure out what codec was negotiated and tell the user)
echo-test-g711 at example.com (forces g711)
echo-test-g729 at example.com (forces g729)
echo-test-gsm at example.com (forces gsm)
...
echo-test-ilbc at example.com (forces ilbc)

--
Eric Chamberlain, Founder
RF.com - http://RF.com/

long time ago I added the "SIP_CODEC" variable that you can set from
within the dialplan, eg:

exten => s,1,Set(SIP_CODEC=alaw)
exten => s,n,Answer
exten => s,n,whatever

now if the remote side actually supports the chosen codec Asterisk
will try to use that one ...
there's no error reporting as far as I know

Martin

On Tue, Oct 20, 2009 at 5:26 PM, Eric Chamberlain <eric at rf.com>
wrote:
> Hello,
>
> I'd like to implement some public sip uri's that poeple can call
into
> and get an echo test. ?Is there a way to force a codec so that users
> can test various codecs?
>
> Something like:
>
> echo-test at example.com (negotiates whatever codec, is there a way to
> figure out what codec was negotiated and tell the user)
> echo-test-g711 at example.com (forces g711)
> echo-test-g729 at example.com (forces g729)
> echo-test-gsm at example.com (forces gsm)
> ...
> echo-test-ilbc at example.com (forces ilbc)
>
> --
> Eric Chamberlain, Founder
> RF.com - http://RF.com/
>
>
>
>
>
>
>
>
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