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<DIV dir=ltr><FONT face=Arial color=#000000 size=2>So long as both voice T1s
have same clock source. Check with your telco if clock source is the same.
I have this working in many places. However when the two T1s have different
clocks it won't work with voice.</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>Two data T1s can have seperate clock
sources is what the enhanced clocking means.</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>The ISR backplane with the DSPs only allow
one clock source for voice total. You need to add a NM-HDV/MFT if you have voice
with another clock source. Say a local voice T1 and a long distance voice T1
from another carrier.</FONT></DIV></DIV>
<DIV dir=ltr><BR>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> cisco-voip-bounces@puck.nether.net on
behalf of Jose Robles<BR><B>Sent:</B> Wed 10/4/2006 4:46 PM<BR><B>To:</B>
cisco-voip@puck.nether.net<BR><B>Subject:</B> [cisco-voip] VWIC-2MFT-T1 on 2821
for PSTN support<BR></FONT><BR></DIV>
<DIV>Hi. Does anyone knows for sure if this T1 (2 port) Multi-Flex Trunk WAN
daughter card VWIC is supported using the 2 T1 ports for voice to the PSTN??? I
read a docuement which I'm not clear with what it says: <BR><BR>
<UL>
<LI>Enhanced clocking capabilities--The 2-port MFT VWIC2s can enable each port
to be clocked from independent clock sources for data applications. This
independent clocking capability is not supported for voice applications and
not supported with the AIM-ATM-VOICE-30 module.
</LI></UL><BR><BR>http://www.cisco.com/en/US/products/hw/modules/ps2617/products_configuration_example09186a008052c920.shtml
<BR><BR><BR>I've had clocking problems with slips errors on the controllers even
using the network-clock participate and select commands for example:
<BR><BR>network-clock-participate wic 0 <BR>network-clock-select 1 T1 0/0/0
<BR><BR>In this scenario controller T1 0/0/0 will give me no errors but 0/0/1
will have slips for example. I can live with this errors but faxes don't.
<BR><BR><BR><BR></DIV>
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