Hi, 

You can set codec for a phone from dialplan using absolute_codec_string parameter as stated in codec negotiation link.

Trans-coding issues in case of G729 or G723 can be handled as: http://wiki.freeswitch.org/wiki/Sofia#sip_renegotiate_codec_on_reinvite

See http://wiki.freeswitch.org/wiki/Channel_Variables#Codec_Related for codec related variables.

Also, there is a configuration in internal and external profiles to define a list of codec in each profile which can be set in global configuration
http://wiki.freeswitch.org/wiki/Config_external.xml 


<param name="codec-prefs" value="$${outbound_codec_prefs}"/>

you can see SIP dialogues on each phone IP to verify which codec are being offered 

ngrep -q -Wbyline '' port 5060 and host x.x.x.x

 
Regards,
Zohair Raza


On Thu, Dec 22, 2011 at 2:54 AM, Nandy Dagondon <gcd@i.ph> wrote:
it's found here:
http://wiki.freeswitch.org/wiki/Codec_negotiation

hope this answers your question.

On Thu, Dec 22, 2011 at 5:25 AM, Sherif Omran <sherifomran2000@yahoo.com> wrote:
hello ,

does anybody know how to set up the codec selection negotiation list in freeswitch? How can you know which codec has been selected for such a call and which codecs are offered from telephone A and B.

I am using log 7


thank you in advance

k.regards
Sherif

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_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting@freeswitch.org
http://www.freeswitchsolutions.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
http://www.cudatel.com

Official FreeSWITCH Sites
http://www.freeswitch.org
http://wiki.freeswitch.org
http://www.cluecon.com

FreeSWITCH-users mailing list
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