<br><div class="gmail_quote">On Thu, Apr 28, 2011 at 11:32 PM, Brian West <span dir="ltr"><<a href="mailto:brian@freeswitch.org">brian@freeswitch.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Nope.<br></blockquote><div> <br>Brian, thanks.<br>But could you elaborate a little?<br>Is this an issue with the underlying speex lib? It is not possible or hard to make it work with ptime=40?<br>If it is possible but not implemented due to lack of users, we could offer a bounty.<br>
(the issue with x-lite not advertising ptime=40 I think I can solve with opensips/kamailio in front of FS, by correctlng the SDP).<br><br>regards,<br>takeshi<br><br>
</div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div></div><div class="h5"><br>
On Apr 28, 2011, at 8:18 AM, mayamatakeshi wrote:<br>
<br>
> I am testing making calls with x-lite 4. Although it doesn't send a ptime in<br>
> its INVITE/SDP, i can see it is sending RTP using ptime=40 as I can count 25<br>
> UDP packets per second.<br>
> When I try to bridge this to PSTN which responds with PCMU, at the PSTN side<br>
> I hear trembling/metallic/robotic audio.<br>
><br>
> I was suggested to set FS to use ptime=40, so I've tried setting codecs with<br>
> speex@8000h@40i<br>
><br>
> But it doesn't work. I get: "488 Not Acceptable Here" (Reason:<br>
> Q.850;cause=88;text="INCOMPATIBLE_DESTINATION)<br>
><br>
> So it seems only ptime=20 is supported as listed here:<br>
> <a href="http://wiki.freeswitch.org/wiki/Codecs#Transcodable_codecs" target="_blank">http://wiki.freeswitch.org/wiki/Codecs#Transcodable_codecs</a><br>
><br>
> Could mod_speex be changed to work with ptime=40 too?<br>
> Or is there anything else that i can try?<br>
><br>
> regards,<br>
> takeshi<br>
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