Avaya Support Forums  

Go Back   Avaya Support Forums > Small and Medium Business Communications

Thread Tools Search this Thread Display Modes
Old 02-26-2019, 02:35 AM
deves deves is offline
Aspiring Member
Join Date: Feb 2019
Posts: 1
deves has 10 reputation points
Default J179 Jitter


I seem to be having some very strange issues with the J179 operating over SIP.

The alarms in the QoS keep triggering with Jitter however as far as I can see the results are not genuine.

Firstly if I use the codec G.711 ALAW 64k on the phone, I get jitter of about 66,000ms - which clearly isn't correct when the call is working.

Secondly when I use G.729 I get random jitter reports at the end of a call and as far as I can see again they don't match up to the monitor.

Log extract:

:22:31 40528240mS CMMap: PCGS CPReserveCodec for the other end (pcp[150]b0r1) true
10:22:31 40528240mS CMMap: PCG::UnmapBChan pcp[145]b0r1 cp_b f5657724 other_cp_b f5655aac
10:22:31 40528240mS CMMap: a=2.18 b=0.18 M02
10:22:31 40528240mS PRN: rtpRelayFilter close rc: 0 rtpRelayId: 1
10:22:31 40528240mS CMMap: PlatformConnectionAudioSAP:isconnectRtpFilter rtpRelayId: 1 Close success
10:22:31 40528240mS H323Evt: SESS 17 SetOperational local remote to 0
10:22:31 40528241mS PRN: rtpRelayFilter close rc: 0 rtpRelayId: 2
10:22:31 40528241mS CMMap: PlatformConnectionAudioSAP:isconnectRtpFilter rtpRelayId: 2 Close success
10:22:31 40528241mS H323Evt: SESS 16 SetOperational local 192.168.x.x:6008 remote to 0
10:22:31 40528241mS CMMap: PCG::UnmapBChan pcp[150]b0r1 cp_b 0 other_cp_b 0
10:22:31 40528241mS H323Evt: SESS 17: RTP(END): x.x.x.x/6010 x.x.x.x/36996 CODEC=Alaw64K(4) PKTSZ=160 RFC2833=on AGE=622537 SENT=31117 RECV=31112 RTdelay=0 jitter=0 loss=0 remotejitter=0 remoteloss=0
10:22:31 40528242mS CMMap: a=0.18 b=0.0 IP::FreeCodec pcp[145]b0r1 freed CMRTVocoder(f562e1ac) resource busy 2, total 20
10:22:31 40528242mS H323Evt: SESS 16: RTP(END): x.x.x.x/6008 x.x.x.x/6000 CODEC=G729A8K(6) PKTSZ=20 RFC2833=on AGE=622539 SENT=31114 RECV=31120 RTdelay=0 jitter=0 loss=0 remotejitter=0 remoteloss=0
10:22:31 40528243mS CMMap: a=2.18 b=0.0 IP::FreeCodec pcp[150]b0r1 freed CMRTVocoder(f56c47b4) resource busy 2, total 20

Image of the quality error showing 100.8 ms jitter - https://pasteboard.co/I2VW8Wp.png

Potentially this is the wrong log message, but I can't see anything else relating to jitter also there maybe a bug with the J179 phones as they're fairly new.

I'd appreciate some help on this as I would like to use the quality control properly.

Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -7. The time now is 06:41 AM.

This Forum is provided solely for the use and convenience of Avaya customers and partners. Use of the Forum is subject to the Terms and Use and Privacy Statement found at www.avaya.com. No other use is permitted. The Forum including all content posted is “AS IS” and Avaya expressly disclaims all warranties and/or guarantees as to its accuracy, reliability, usefulness, quality or non-infringement of intellectual property. Avaya reserves the right to remove any content posted on the Forum at any time and for whatever reason.

Avaya will not be liable for any content posted on this Forum, including, without limitation, any errors or omissions or for any losses or damages of any kind incurred as a result of use or reliance on any content, regardless of its origin.

You expressly understand and agree that you assume all risks associated with use or reliance on this content.