14 May
2021
14 May
'21
6:08 p.m.
Are your RTP clients sending RTCP? MOS calculation depends on RTCP. You
can look in rtpengine's log, at the end of the call the MOS score is
logged together with other stream stats.
In more recent versions of rtpengine you can enable local RTCP
generation and this should give you stats even if the clients don't send
RTCP.
Cheers
On 14/05/2021 09.52, [ EXT ] Barry Flanagan wrote:
Hi
Using Kamailio 5.4.4 on Debian Buster. I am trying to get feedback of
the MOS scores at call end. However the variables are always <null>.
I have the modparams set as follows:
# ----- rtpengine params -----
modparam("rtpengine", "rtpengine_sock",
"udp:localhost:2223")
modparam("rtpengine", "rtpengine_disable_tout", -1)
modparam("rtpengine", "rtpengine_tout_ms", 2000)
modparam("rtpengine", "rtpengine_allow_op", 1)
modparam("rtpengine", "mos_min_pv", "$avp(s:mos_min)")
modparam("rtpengine", "mos_max_pv", "$avp(s:mos_max)")
modparam("rtpengine", "mos_average_pv", "$avp(s:mos_avg)")
modparam("rtpengine", "mos_average_packetloss_pv",
"$avp(s:mos_avg_packetloss)")
modparam("rtpengine", "mos_average_jitter_pv",
"$avp(s:mos_avg_jitter)")
modparam("rtpengine", "mos_average_roundtrip_pv",
"$avp(s:mos_avg_roundtrip)")
I am trying to log the values from within the dialog:end event_route:
event_route[dialog:end] {
rtpengine_delete();
xlog("L_INFO","mos_avg=$avp(mos_avg),
packetloss_avg=$avp(mos_avg_packetloss),
jitter_avg=$avp(mos_avg_jitter), latency_avg=$avp(mos_avg_roundtrip),
sip_last_reply=$rs - $ci\n");
return;
}
Am I missing something? I have tried rtpengine_query and
rtpengine_manage in place of the _delete and also tried placing this
in the BYE handling section of WITHIN_DIALOG but no joy.
Any assistance much appreciated!
-Barry
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