[Freeswitch-users] Does FS supports speex with ptime=40?

[Brian West]

Nope.

/b

On Apr 28, 2011, at 8:18 AM, mayamatakeshi wrote:

> I am testing making calls with x-lite 4. Although it doesn't send a ptime in
> its INVITE/SDP, i can see it is sending RTP using ptime=40 as I can count 25
> UDP packets per second.
> When I try to bridge this to PSTN which responds with PCMU, at the PSTN side
> I hear trembling/metallic/robotic audio.
> 
> I was suggested to set FS to use ptime=40, so I've tried setting codecs with
> speex at 8000h@40i
> 
> But it doesn't work. I get: "488 Not Acceptable Here" (Reason:
> Q.850;cause=88;text="INCOMPATIBLE_DESTINATION)
> 
> So it seems only ptime=20 is supported as listed here:
> http://wiki.freeswitch.org/wiki/Codecs#Transcodable_codecs
> 
> Could mod_speex be changed to work with ptime=40 too?
> Or is there anything else that i can try?
> 
> regards,
> takeshi
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