[Freeswitch-users] Multiple 183 SDP Change Codecs - allowed?

[Kristian Kielhofner]

I see the original offer from FreeSWITCH.  I was asking what the
carrier's SBC does if you configure FreeSWITCH to only offer PCMU or
PCMA.

If you only offer one codec they absolutely shouldn't switch codecs in
between 183s...

On Tue, Jul 3, 2012 at 11:56 AM, Avi Marcus <avi at avimarcus.net> wrote:
> They said the 1st carrier rejected it so the second 183 is from a second
> carrier.. but yes, the first carrier shouldn't be sending a 183...
> Anyway -- if you please look at the pcap from the first email, the log I
> posted a link to later, or the past two emails -- you'll see FS originally
> offers both PCMU and PCMA in the initial invite.
>
> I think we need Anthony to chime in here... he knows the RFC stuff!
>
> -Avi
>

-- 
Kristian Kielhofner