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<p class=MsoNormal><span style='color:#1F497D'>This is true on the 2800/3800
today (except in the case of the NM-NDV modules mentioned, but I don’t
think so even in that case). It is because there is a “single”
PLL clocking circuit shared for all PRI’s. The WIC must be
configured to participate in that clocking circuit prior to setting up the
PRI. I can’t remember any device that could handle this
in 20 years of installing channel banks, muxes, routers, etc.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>That said, a lot of times it
will work acceptably because the clocks are close enough, especially if the local
loop provider is the same on all links. But, you have to test it to know
in any case.<o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>-Chris<o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<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>Bill<br>
<b>Sent:</b> Monday, June 28, 2010 4:21 PM<br>
<b>To:</b> 'Jason Aarons (US)'; 'cisco-voip'<br>
<b>Subject:</b> Re: [cisco-voip] ISR G2 PVDM3 DSPs on backplane<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>What? I know you could not do different Telco’s on the same
two port card but you can’t do two telco’s in the same router? Is
there an official response to this? Is there a specific defect I can reference
with my Cisco AM? <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
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style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
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<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>Jason Aarons (US)<br>
<b>Sent:</b> Monday, June 28, 2010 4:12 PM<br>
<b>To:</b> cisco-voip (cisco-voip@puck.nether.net)<br>
<b>Subject:</b> [cisco-voip] ISR G2 PVDM3 DSPs on backplane</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>A TAC engineer at Cisco Live confirmed you can’t have
multiple voice PRIs from separate telcos come into a G2 with different clocks.
For example you have a AT&T PRI, a Verizon PRI, a Century Link PRI, a
Alltell PRI, a Paetec PRI all in the same router. You can’t clock the
backplane to more than one source! You’ll get slips, etc
audio will sound bad, faxes/modems will fail. Fix is separate
routers. He said he thought a 2800 with DSPs on a NM-HDV module would
work though. My exact question was can you carve up the backplane PVDM3
clocking for separate PRIs somehow.<o:p></o:p></p>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=1 width="100%" align=center>
</span></div>
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