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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have a customer with a small two site cluster. When
they hold conference calls, everything works fine for the first 15 – 20 minutes
but then the participant in the remote site will complain that the audio
becomes choppy or sounds like they’re “under water”. These
are meet-me conferences initiated by a user at the central site (where the
callmanagers are) using the callmanager software conference bridge. The
remote user calls across the WAN (g729) and uses a dsp resources in a 1760 for
transcoding. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>After 15 minutes or so the call quality will degrade for the
remote participant but other participants are able to hear the remote user and
each other fine. If the remote user hangs up and calls back into the
conference, it will sound fine but degrade again after 15 + minutes. During
one conference a user called in to the conference 4 times and the call always
degraded after 15 minutes. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I don’t think the WAN is an issue. They have
MPLS with guaranteed realtime bandwidth for 3 concurrent calls. Callmanager
locations enforce this limit and we’ve never had any call quality
complaints except for these conferences. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have a case open with TAC but we’re not getting very
far with them. I’m wondering if anyone else has experienced a
similar issue. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><st1:PersonName
w:st="on"><font size=2 face=Arial><span style='font-size:10.0pt;font-family:
Arial'>Kris Seraphine</span></font></st1:PersonName><br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Senior
Technology Specialist</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><st1:City
w:st="on"><st1:place w:st="on"><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Clifton</span></font></st1:place></st1:City><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> Gunderson
Technology Solutions<br>
<st1:Street w:st="on"><st1:address w:st="on">1111 Deming Way suite 101</st1:address></st1:Street><br>
<st1:place w:st="on"><st1:City w:st="on">Madison</st1:City>, <st1:State w:st="on">WI</st1:State>
<st1:PostalCode w:st="on">53717</st1:PostalCode></st1:place><br>
Phone: 608.833.8638<br>
Fax: 608.833.0194<br>
Direct: 608.662.7640<br>
Web: <a href="http://www.cliftoncpa.com/" title="http://www.cliftoncpa.com/">www.cliftoncpa.com</a></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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