<div dir="ltr">This one is nasty. Been hitting a bunch of people.</div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Feb 27, 2018 at 2:51 PM, Anthony Holloway <span dir="ltr"><<a href="mailto:avholloway+cisco-voip@gmail.com" target="_blank">avholloway+cisco-voip@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Have you seen the defect on the Opus codec and 8800 series phones?<div><br></div><div><p class="MsoNormal"><span style="font-size:13.5pt;font-family:Arial,sans-serif;color:rgb(68,68,68)"><a href="https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvc76073" target="_blank">OPUS codec on
78XX/88XX causing audio quality problems</a></span><span style="font-size:11pt;font-family:Calibri,sans-serif"></span></p></div></div><br><div class="gmail_quote"><div><div class="h5"><div dir="ltr">On Tue, Feb 27, 2018 at 9:48 AM Terry Oakley <<a href="mailto:Terry.Oakley@rdc.ab.ca" target="_blank">Terry.Oakley@rdc.ab.ca</a>> wrote:<br></div></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
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<p class="MsoNormal">This appears to be a SIP issue but I will ask you much more brilliant people than I to see where I should or should not be looking. We are slowly migrating from a mostly 7941 7942 SCCP deployment to almost exclusively 8851 SIP based handsets.
We rarely saw any call issues but now with the 8851 handsets in place we have a few users who are experiencing dropped calls (so far only internal calls have been reported as dropped). The other person in the call path is almost always getting the Perservation
mode message on their device. This is so far been reported as affecting a few users primarily and consistently. Even to the point where one of them the phone is restarting on a regular basis even when not on a call. We have replaced devices, moved users
to new network ports and still the issue continues. Any advice that you have that would assist me in troubleshooting this I would greatly appreciate. I have used RTMT to ‘look’ at different parameters but am a little green on where or what I should be
looking for. <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Graciously thanking you in advance<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Terry<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><b><span lang="EN-CA" style="color:#1f497d">Terry Oakley</span></b><b><span lang="EN-CA" style="font-family:"Arial",sans-serif;color:#1f497d"><u></u><u></u></span></b></p>
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