[cisco-voip] T1 Clock source question

[Anthony Holloway]

I've had situations where multiple carriers use the same last mile
provider, so the clocking was the same anyway.  E.g., Verizon PRI is
actually delivered by CenturyLink circuits.  In those cases, there was no
clocking issue.

Like Rob said, you can have a separate clocking domain with a Network
Module which has a T1 card in it and it's own PVDMs.  Cheaper than buying a
whole new router for sure, but it might not even be necessary.

On Wed, Apr 22, 2015 at 2:26 PM Ryan Huff <ryanhuff at outlook.com> wrote:

> I have always subscribed to the idea that you should use one clocking
> source in situations where you have multiple T1's. In fact, I've read (not
> experienced) that when you use multiple clocking domains, that in-fact can
> sometimes cause slips.
>
> Can anyone explain the advantages of using multiple clocking sources?
>
> Thanks,
>
> Ryan
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