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<p class="MsoNormal"><span style="color:#1F497D">Not sure about 4351 architecture but the ISR series had a single PLL (Phased Lock Loop) and the DSPs synced to a single source. The only place this really caused problems was fax/modems. Workaround would be
1 box per carrier for PRIs.<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">Ask your Partner/Cisco AM/SE do some research on the 4351 architecture.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> cisco-voip [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Mike Olivere<br>
<b>Sent:</b> Thursday, June 11, 2015 9:38 AM<br>
<b>To:</b> 'Cisco VoIP Group'<br>
<b>Subject:</b> [cisco-voip] 4000 series ISR & DSP<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal">I saw a conversation few weeks back where there was a discussion on mixing DSPs from the PRI cards and the motherboard. I have a scenario where a customer wants to use a 4351 to terminate 3 voice T1's (1 PRI & 2 channelized ) along with
SIP from a local carrier.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">From what I understand the 1 PRI is from one carrier and the 2 channelized T1s are from another. Do I need a (1) port T1 card and (2) port card each with a separate DSP so I can have individual clocking domains? or can I put a 4 port card
in with (1) 128 channel DSP and still have individual clocking domains? Then I need a DSP on the motherboard to support CUCM / CUBE functions, but I can't pull from the T1 cards to satisfy any xcode or conf resources is that correct?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for the help<o:p></o:p></p>
<p class="MsoNormal">Mike<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<br>
<span style="color:white">itevomcid</span> <o:p></o:p></span></p>
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