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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>It’s a known issue, listed in the product
data sheet for the VIC2-2MFT-T1. For voice only, you have to plan the clocking
around the motherboard design limitations. Not sure how in the future cisco
could get the DSPs on motherboard to have different clock sources. Maybe Texas
Instruments needs some re-work in their chips to support this.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Pickett, McLean (OCTO)<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, December 01, 2006
10:20 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Jonathan Charles; Lelio
Fulgenzi<br>
<b><span style='font-weight:bold'>Cc:</span></b> cisco-voip@puck.nether.net;
STEVEN CASPER<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [cisco-voip] 2851 and
12 T1s</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>The VWIC2’s support different clocking
sources for data T1’s, but not voice T1’s. Seems like the problem would be more
related to PRI’s on the same router from different CO switches. Has anyone seen
this in practice?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'>McLean</span></font></st1:place><font
size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black'><o:p></o:p></span></font></p>
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10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Jonathan Charles<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, December 01, 2006
9:55 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Lelio Fulgenzi<br>
<b><span style='font-weight:bold'>Cc:</span></b> cisco-voip@puck.nether.net;
STEVEN CASPER<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [cisco-voip] 2851 and
12 T1s</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>The only time you will
get a clocking source problem is if you have multiple T1s connecting to a
router from different destination switches.<br>
<br>
For example, you have a frame-relay T1 and a PRI... <br>
<br>
You have to identify to the router which WIC is going to be the master clock.
In which case you will see slips on the other T1. <br>
<br>
I do not believe there is any work-around. It is possible (though unlikely)
that there are some Cisco routers that can have multiple clock sources...<br>
<br>
<br>
<br>
Jonathan<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><span class=gmailquote><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>On 12/1/06, <b><span style='font-weight:bold'>Lelio
Fulgenzi</span></b> <<a href="mailto:lelio@uoguelph.ca">lelio@uoguelph.ca</a>>
wrote:</span></font></span><o:p></o:p></p>
<div bgcolor="#ffffff">
<div>
<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
10.0pt'>Do the 3800s have this problem? </span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>--------------------------------------------------------------------------------<br>
<span class=sg>Lelio Fulgenzi, B.A.</span><br>
<span class=sg>Senior Analyst (CCS) * <st1:PlaceType w:st="on">University</st1:PlaceType>
of <st1:PlaceName w:st="on">Guelph</st1:PlaceName> * <st1:place w:st="on"><st1:City
w:st="on">Guelph</st1:City>, <st1:State w:st="on">Ontario</st1:State> <st1:PostalCode
w:st="on">N1G 2W1</st1:PostalCode></st1:place></span><br>
<span class=sg>(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)</span><br>
<span class=sg>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
</span><br>
<span class=sg>"I can eat fifty eggs." "Nobody can eat fifty
eggs."</span><o:p></o:p></span></font></p>
</div>
<div><span id="q_10f3e61acfc7db65_3">
<blockquote style='border:none;border-left:solid black 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
<div style='font-size-adjust: none;font-stretch: normal'>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>----- Original Message ----- <o:p></o:p></span></font></p>
</div>
<div style='-moz-background-clip: -moz-initial;-moz-background-origin: -moz-initial;
-moz-background-inline-policy: -moz-initial;font-size-adjust: none;font-stretch: normal;
background-position-x:0%;background-position-y:
50%;background-attachment:
scroll'>
<p class=MsoNormal style='background:#E4E4E4'><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>From:</span></font></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a
href="mailto:SCASPER@mandtbank.com" target="_blank"
title="SCASPER@mandtbank.com">STEVEN CASPER</a> <o:p></o:p></span></font></p>
</div>
<div style='font-size-adjust: none;font-stretch: normal'>
<p class=MsoNormal><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'>To:</span></font></b><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> <a
href="mailto:jason.wydra@berbee.com" target="_blank"
title="jason.wydra@berbee.com">jason.wydra@berbee.com</a> ; <a
href="mailto:cisco-voip@puck.nether.net" target="_blank"
title="cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a> ; <a
href="mailto:cmstaffin@ra.rockwell.com" target="_blank"
title="cmstaffin@ra.rockwell.com">cmstaffin@ra.rockwell.com</a> <o:p></o:p></span></font></p>
</div>
<div style='font-size-adjust: none;font-stretch: normal'>
<p class=MsoNormal><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'>Sent:</span></font></b><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Friday, December
01, 2006 7:18 AM<o:p></o:p></span></font></p>
</div>
<div style='font-size-adjust: none;font-stretch: normal'>
<p class=MsoNormal><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'>Subject:</span></font></b><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Re: [cisco-voip]
2851 and 12 T1s<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>What do you do if you have multiple potential clocking sources? It is<br>
likely at a site that you can have connections to Local and Long<br>
Distance service providers as well as to a PBX. <br>
<br>
Steve<br>
<br>
>>> "Craig M Staffin" <<a
href="mailto:cmstaffin@ra.rockwell.com" target="_blank">cmstaffin@ra.rockwell.com</a>>
11/30/06 2:43 PM >>><br>
Biggest problem is going to be that the 2851 can only have one clocking<br>
<br>
source. So if all 12 terminate to the same CO switch you are fine <br>
otherwise you will have timeing issues.<br>
<br>
Craig<br>
<br>
<br>
<br>
<br>
"Wydra, Jason" <<a href="mailto:jason.wydra@berbee.com"
target="_blank">jason.wydra@berbee.com</a>> <br>
Sent by: <a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a>
<br>
11/30/2006 01:22 PM<br>
<br>
To<br>
<<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a>><br>
cc<br>
<br>
Subject<br>
[cisco-voip] 2851 and 12 T1s<br>
<br>
<br>
<br>
<br>
<br>
<br>
Any issue with terminating 12 T1s into a 2851? I have a mixture of PRI<br>
and <br>
T1 CAS. 6 2MFT-T1 cards. Does this router have the horsepower?<br>
<br>
Jason Wydra<br>
Berbee<br>
Cisco Voice Engineer<br>
<st1:Street w:st="on"><st1:address w:st="on">8725 West Higgins Road, Suite 700</st1:address></st1:Street><br>
<st1:place w:st="on"><st1:City w:st="on">Chicago</st1:City>, <st1:State w:st="on">Il</st1:State></st1:place>.
60631<br>
IP phone 773.867.6084<br>
Cell 630-209-9792<br>
<a href="mailto:Jason.Wydra@berbee.com" target="_blank">Jason.Wydra@berbee.com</a>
<br>
<a href="http://www.berbee.com" target="_blank">www.berbee.com</a> <br>
<br>
<br>
_______________________________________________<br>
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