[Freeswitch-dev] FS complained on RTP packet.

Michael Jerris mike at jerris.com
Wed Aug 25 20:30:17 PDT 2010

20 ms of ulaw would be 160 bytes, not 320.


On Aug 25, 2010, at 4:46 PM, Johny Kadarisman Kwan wrote:

> I'm trying to convert a proprietary audio stream into sip/rtp compatible. At this point, i'm able to pass sip negotiation with FS, and trying to stream PCMU/8000 codec. But something not right on my end, and FS complained about the ptime settings.
> I'm sending 320 bytes ulaw payload on every rtp packet. Is that the right amount? appreciate if anyone could point some info on these topics.
> Thanks,
> JK
> ===============
> 2010-08-25 16:36:58.142328 [WARNING] mod_sofia.c:1013 We were told to use ptime 20 but what they meant to say was 40
> This issue has so far been identified to happen on the following broken platforms/devices:
> Linksys/Sipura aka Cisco
> ShoreTel
> Sonus/L3
> We will try to fix it but some of the devices on this list are so broken,
> who knows what will happen..
> ===================

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