Yes. They tell you what's acceptable to them inside the SIP messages you're trading back and forth on the call setup.
You can use "sip debug" within Asterisk to get a closer look at those messages.
On 10/14/05, Obelix <[EMAIL PROTECTED]> wrote:
Quoting Ray Van Dolson <[EMAIL PROTECTED]>:
How can you determine which codecs are acceptable to them?
Do they have a way of indicating it?
> Perhaps they dont' like the codec you're offering in your INVITE message?
>
> Ray
>
> On Fri, Oct 14, 2005 at 01:36:17PM +0000, Obelix wrote:
> >
> > I have been receiving a lot these 488 "Not Acceptable Here" from a number
> of
> > providers. What could the problem be?
> >
> > What is the most common cause of this message?
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