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<p class=MsoNormal><span style='color:#1F497D'>I seem to remember this
discussion has popped up several times..<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'>If it is a VWIC 1<sup>st</sup> gen---
yep that is it..<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>If it is a VWIC 2<sup>nd</sup>
gen – you could 2 different carriers on the same card..<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'>Jim<o:p></o:p></span></p>
<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 5:45 PM<br>
<b>To:</b> 'Beck, Christopher'; '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'>Are you sure that is the case currently? I think you can have
multiple PRI’s inside the same router on an ISR but they can not be on the same
VWIC. <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>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Jason said you can not have multiple PRI’s within the same router.<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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<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"'> Beck, Christopher
[mailto:CBeck@usg.com] <br>
<b>Sent:</b> Monday, June 28, 2010 4:40 PM<br>
<b>To:</b> Bill; 'Jason Aarons (US)'; 'cisco-voip'<br>
<b>Subject:</b> RE: [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><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>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<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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<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>
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style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=1 width="100%" align=center>
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