[Freeswitch-users] Codec negotiation questions

[Anthony Minessale]

the entire sdp is available as a variable (route the call to the info app to
see the variables)
so if you have inbound-late-negotiation set to true on the sip profile
then you can use a regex or a script to set absolute_codec string before you
answer.


On Thu, Feb 12, 2009 at 8:06 AM, ivdreg ivdreg <ivdreg at gmail.com> wrote:

> Hi all,
>
> Can I ask 2 questions about codec negotiation:
>
> 1. Is it possible Freeswitch to work negotiate codecs between two phones as
> it is described below.
> INVITE from A with some codecs in SDP ---> Freeswitch rewrites codec
> preference according absolute_codec_string but exclude all codecs not
> offered by A ----> INVITE to B with rewrited SDP.
>
> example:
> from A SDP:PCMA,PCMU,SPEEX  ----> absolute_codec_string=G722,PCMU,PCMA,GSM
> ----> to B SDP: PCMU,PCMA
>
> 2. Can I get codec list in INVITE with mod_perl for example or via xml_curl
> without processing SDP variable (switch_r_sdp). It will be useful to be in
> format that absolute_codec_string variable takes.
>
> Thanks
>
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>


-- 
Anthony Minessale II

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