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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Or some sort of CDP / Spanning Tree weird thing going on. Try turn
off portfast on those port and see if it helps. Look at the QoS on the ports
too and check and see if there’s any inconsistency.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Ted Nugent<br>
<b>Sent:</b> Tuesday, January 05, 2010 12:39 PM<br>
<b>To:</b> Cisco VoIPoE List<br>
<b>Subject:</b> [cisco-voip] 7937 Packet Loss and intermittent voice quality
issues<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>I have a new customer install<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>with 8 sccp 7937s and all of them are experiencing the same
problem. Intermittently<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>throughout the call they continue to lose voice for 5-10 seconds
and then it<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>clears back up for a few minutes and it occurs again. I can see on
the web<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>statistics for the phone that it appears to be losing packets
(Rcvr Lost<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>Packets 2483). This only appears to be occurring<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>inbound to the device since the caller does not hear and audio
issues. These devices<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>are deployed throughout the company and all are experiencing the
same issues at<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>times. There are a couple bugs for g729 and g722 but we’re running
g711 (g722<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>has been disabled clusterwide). They were experiencing the issue
yesterday and<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>I had the 7937 conference in a 7965 and the 7965 did not
experience any voice<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>issues so it’s not the call itself or callers phone. No other
phones are<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>experiencing the issues and I’ve upgrading the load from 1.3.3 to
1.3.4 and the<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>problem still exists. Calls are hitting the PSTN via an MGCP
controlled PRI<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>however I’m not sure if that’s in play or not we have not been
able to<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>replicate the problem on internal calls but that’s not to say it’s
not occurring<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>because its intermittent.</span></span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>No Duplex Mismatches</span></span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>Cabling has been checked and<o:p></o:p></span></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>device moved to new location with known good wiring</span></span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>CUCM 7.1.2.21900-5</span></span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
class=apple-style-span><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:black'>Any ideas?</span></span><o:p></o:p></p>
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<p class=MsoNormal><br>
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<span class=apple-style-span><o:p></o:p></span></p>
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