<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Ryan,</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">This doc and sample config seems to only show how to do normal user side & network clocking.</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">When doing network side isdn to a pbx, you have to provide them the clock, I like Brian have not figured out that part of the 4K voodoo. </div><div id="AppleMailSignature"><br>Sent from my iPhone</div><div><br>On Oct 27, 2015, at 7:23 PM, Ryan Huff <<a href="mailto:ryanhuff@outlook.com">ryanhuff@outlook.com</a>> wrote:<br><br></div><blockquote type="cite"><div>
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Brian,<br>
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<p>You'll essentially be doing the same thing as you would have in the ISRG2 but as you've discovered, the syntax has changed a bit in the 4k's. I've included the relevant portion of a t1 config on a 4k in my lab below. Here is the link for 4th gen NIM t1 configurations
(I'd suggest a good read here, a lot of syntax has changed that might leave you scratching your head): <a title="Ctrl+Click or tap to follow the link" id="LPlnk509399" href="http://www.cisco.com/c/en/us/td/docs/routers/access/interfaces/NIM/software/configuration/guide/ConfT1E1NIM.html">http://www.cisco.com/c/en/us/td/docs/routers/access/interfaces/NIM/software/configuration/guide/ConfT1E1NIM.html</a></p>
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<p>Hope This Helps,</p>
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<p>Ryan</p>
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<p>|----- CONFIG SAMPLE -----|<br>
</p>
<p><br>
</p>
<p><i>card type t1 0 2<br>
!</i><br>
<i>isdn switch-type primary-ni<br>
!<br>
network-clock synchronization automatic<br>
network-clock synchronization participate 0/2<br>
!<br>
voice-card 0/2<br>
dsp services dspfarm<br>
!<br>
controller T1 0/2/0<br>
framing esf<br>
linecode b8zs<br>
!<br>
<br>
clock source line primary<br>
<br>
network-clock input-source 1 controller t1 0/2/0<br>
cablelength long 0db<br>
pri-group timeslots 1-24 voice-dsp<br>
!<br>
interface Serial0/2/0:23<br>
encapsulation hdlc<br>
isdn switch-type primary-ni<br>
no cdp enable<br>
</i></p><i>
<p>!</p>
<p><br>
</p>
<p>|----- CONFIG SAMPLE -----|<br>
</p>
</i><br>
<p></p>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri, sans-serif"><b>From:</b> cisco-voip <<a href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a>> on behalf of Brian V <<a href="mailto:bvanbens@gmail.com">bvanbens@gmail.com</a>><br>
<b>Sent:</b> Tuesday, October 27, 2015 8:42 PM<br>
<b>To:</b> <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b> [cisco-voip] ISR 4431 - Need to configure "clock source internal" on PRI interface , get error</font>
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<p style="margin:0in; font-family:Calibri; font-size:11pt">I have a ISR 4331 that I'm configuring for voice PRI support.</p>
<p style="margin:0in; font-family:Calibri; font-size:11pt">Performing an integration with a Nortel PBX (back to back PRI) where i need to be the clock source on the underlying T1 circuit.</p>
<p style="margin:0in; font-family:Calibri; font-size:11pt"> </p>
<p style="margin:0in; font-family:Calibri; font-size:11pt">In the past on ISR G2 platforms (like a 2921), I could configure "clock source internal" under the controller T1 interface.<span style="">
</span>On the 4331 I get the following error when the clock source it set to internal under the controller T1<br>
</p>
<p style="margin:0in; font-family:Calibri; font-size:11pt"> </p>
<p style="margin:0in; font-family:Calibri; font-size:11pt">TIV-4331-01-TEMP(config-controller)#pri-group timeslots 1-24<span style="">
</span></p>
<p style="margin:0in; font-size:11pt"><span style="font-family:monospace,monospace">%Cannot create ds0/tdm/pri-group with clock source internal</span></p>
<span style="font-family:monospace,monospace"></span>
<p style="margin:0in; font-size:11pt"><span style="font-family:monospace,monospace">%pri-group voice-dsp cannot be created under the clock source configuration</span></p>
<p style="margin:0in; font-family:Calibri; font-size:11pt"> </p>
<p style="margin:0in; font-family:Calibri; font-size:11pt">How do I accomplish the same on this newer platform or is it no longer possible ?</p>
<p style="margin:0in; font-family:Calibri; font-size:11pt"><br>
</p>
<p style="margin:0in; font-family:Calibri; font-size:11pt">The NIM does have it's own DSP resources.</p>
<p style="margin:0in; font-family:Calibri; font-size:11pt">I can get the integration up and working, with the default "clock source line", but I get slips on the t1 as the Nortel side is free running and looking to the line as a clock source on its end.</p>
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<p style="margin:0in; font-family:Calibri; font-size:11pt">I hope I'm just missing something obvious.</p>
<p style="margin:0in; font-family:Calibri; font-size:11pt">Thanks<br>
</p>
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