[SR-Users] RTPEngine QoS statistics and leg labelling

Richard Fuchs rfuchs at sipwise.com
Wed Feb 14 18:56:35 CET 2018

On 2018-02-14 12:51 PM, Alex Balashov wrote:
> On Wed, Feb 14, 2018 at 12:49:04PM -0500, Richard Fuchs wrote:
>> It keeps track of packet and octet counts.
> Is that the stuff exposed via the traditional $rtpstat facility?
> What I was really looking to ascertain is that none of the statistics
> available under the new rtpengine module PVs are populated without

Correct, these are all currently extracted from RTCP only.

>> With transcoding engaged for a call, it also keeps track of packet
>> loss and duplications. It could calculate jitter, but doesn't
>> currently do so.
> Aha, thank you!
> Is this an aspect of the transcoding functionality, or simply
> non-kernelised relay?

Both are needed. Without transcoding engaged for a call, rtpengine 
ignores most aspects of RTP, including sequence numbers and timestamps, 
which would be needed for stats keeping.


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