23 Apr
2014
23 Apr
'14
2:36 p.m.
I'm having some troubles with a provider sending RTP before a 183 Session
Progress or 200 OK (I see up to 1s of rtp prematurely). The machine is running
rtpproxy and apparently rtpproxy buffers these rtp packets and flushed them in
one burst when the 183/200 arrive, this creates havock in some endpoints but
is undesirable in all cases IMHO if the delay of the 182/200 is to high
(>0.1s).
Is there a way to control buffering/flushing from kamailio? Is rebuilding
rtpproxy with a smaller buffer an option? Or should I switch to an other proxy
module? Any thoughts about this subject (apart from getting the provider to
stop sending premature rtp)?
--
POCOS B.V. - Croy 9c - 5653 LC Eindhoven
Telefoon: 040 293 8661 - Fax: 040 293 8658
http://www.pocos.nl/ - http://www.sipo.nl/
K.v.K. Eindhoven 17097024
23 Apr
23 Apr
2:41 p.m.
On 04/23/2014 07:36 AM, Daniel Tryba wrote:
I'm having some troubles with a provider sending
RTP before a 183
Session Progress or 200 OK (I see up to 1s of rtp prematurely). The
machine is running rtpproxy and apparently rtpproxy buffers these rtp
packets and flushed them in one burst when the 183/200 arrive, this
creates havock in some endpoints but is undesirable in all cases IMHO
if the delay of the 182/200 is to high (>0.1s).
Just of curiosity, how exactly does the "havoc" manifest itself? What
are the symptoms of this being a problem?
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
4:54 p.m.
On Wednesday 23 April 2014 13:41:42 Alex Balashov wrote:
Just of curiosity, how exactly does the
"havoc" manifest itself? What
are the symptoms of this being a problem?
Havoc might be a bit strong (though "great confusion and disorder" fits well).
Bad sound quality (if any sound) for a longer period due to multiple jitter
buffer overflows for that one channel and if the endpoint is on a limited
circuit drops in the other channels as well. It manifests on a particular PBX
(Swyx), most endpoints are Patton Smartnodes and they seem to cope well.
--
POCOS B.V. - Croy 9c - 5653 LC Eindhoven
Telefoon: 040 293 8661 - Fax: 040 293 8658
http://www.pocos.nl/ - http://www.sipo.nl/
K.v.K. Eindhoven 17097024
3895
days inactive
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participants (2)
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Alex Balashov -
Daniel Tryba