[Freeswitch-users] Codec trans coding

[Francis]

Find the following line (if it exists) in your SIP profiles and set it 
to false:

<param name="inbound-zrtp-passthru" value="false"/>

This will allow transcoding to work, assuming that you also have the 
appropriate codecs compiled, loaded and enabled.  The companion setting 
to this is:

<param name="inbound-late-negotiation" value="true"/>

Which will first attempt to find a matching codec between the two 
endpoints, and fall back to transcoding if a match cannot be found.

Obviously, G729 will only transcode if you have a license for each 
channel, but if I understand your question correctly, that's what you're 
trying to work around. Ideally, the phones should offer a list of codecs 
in order of preference, not just a single codec, which is a good way to 
drop calls and irritate users.

Francis

On 9/01/2014 1:13 AM, Shahzad Bhatti wrote:
> i have a case that
> freeswitch receive calls from different sip phones supporting 
> different codecs
> i want to trans code and then pass to leg b in a way that
> every codec is trans code to PCMA / PCMU
> like
> iLBC -> PCMU
> Speex -> PCMA
> Silk -> PCMU
>
> but if leg A offer G729 then it passes to leg B with out trans coding
>
> what is the best way to do that
>
> regards
>
> Shahzad Bhatti
>
>
>
>
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