On Oct 15, 2008, at 9:35 AM, Roy wrote:

Just because its a point to point circuit doesn't mean one side has to
have internal clocking. This is only true if the circuit is copper all
the way.   There are lots of reasons that the telco would have its own
equipment installed on the circuit and you would need network timing.

I'll second what Roy says. Both sides should be clocking from the network. The T-1 is going to get muxed and/or go through a telco digital cross connect so the telco will be providing their clock on the line.

--Chris
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