Thanks dear.Setting on my SBC is RTCP (ON) & on my Soft switch it is set to On
(however, if it doesn't receive any RTCP, it will ignore).In the RFC 1889, it
says "Feedback may be directly useful for adaptive encoding"; Is it possible
that codecs can change the bit rate accordingly & adjust the call quality?
6. RTP Control Protocol -- RTCP
The RTP control protocol (RTCP)
is based on the periodic transmission
of control packets to all
participants in the session, using the same
distribution mechanism as the
data packets. The underlying protocol
must provide multiplexing of
the data and control packets, for
example using separate port
numbers with UDP. RTCP performs four
functions:
1. The primary function is to provide feedback
on the quality
of the data
distribution. This is an integral part of the
RTP's role as a
transport protocol and is related to the
flow and congestion
control functions of other transport
protocols. The feedback may be directly
useful for control
of adaptive encodings
Sylvester Skype/Yahoo/GTalk ID: framedrelay
> Subject: Re: [Sip-implementors] ACD (Average call duration) and its relation
> with RTCP
> From: dheerajmaho...@gmail.com
> Date: Tue, 26 Jul 2016 23:14:34 +0530
> CC: sip-implementors@lists.cs.columbia.edu
> To: prasanth.sylves...@outlook.com
>
> Their is no connection between rtcp and ACD but it could be possible their
> might be some device which disconnect the call in the absence of rtcp. But
> that vary from device to device.
>
> Thanks and Regards
> Dheeraj Kumar
>
> Sent from iPhone
>
> > On 26-Jul-2016, at 11:08 PM, Prasanth Sylvester
> > <prasanth.sylves...@outlook.com> wrote:
> >
> > Hi Team,
> > Good day,In past we were on TDM & here is the connectivity,International
> > Carrier -(sip)-> SBC -(sip)-> Softswitch -[tdm] ->(MSS/MGW)& now we have
> > moved that link to IP/sip; & we observe the ACD (Average call duration) has
> > really come down;
> > When we have enabled rtcp on SBC, we observe there in an improvement in
> > ACD; (Enabled it on SBC & MSS);Signaling path is SBC-> Softswitch -> MSS
> > RTP path is SBC -> MGW
> > Is there any relation of RTCP improving ACD, though RTCP only provides
> > statistical information.
> >
> > Sylvester Skype/GTalk ID: framedrelay
> > _______________________________________________
> > Sip-implementors mailing list
> > Sip-implementors@lists.cs.columbia.edu
> > https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
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