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New Member

clocking on a T1

I have a a question about T1 clocking.

I have a 2620 router w/ a WIC T1 module connecting to a data T1 and a NM-1V w/ a VIC-1MFT1 going into a PBX. The WIC has clocking set for internal and is connected via a PPP line to another 2620 w/ clocking set to line. The 2620 on the far end is connected to a PBX also.

The issue is the voice line doesn't come up. The PBX is providing clocking at both ends to the VWIC. Can I set the VWIC at the near end to clocking line with the WIC set to clocking internal?


Re: clocking on a T1

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If anyone else in the forum has some advice, please reply to this thread.

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New Member

Re: clocking on a T1

When you say the voiceline doesn't come what, what line is that? The PBX-2620? Also, do you mean that the T1 interface shows down when you do a show interface?

New Member

Re: clocking on a T1

Thanks for replying, although it ended up being the PBX. It wasn't configured correctly on the other side, only the people over there didn't realize it. Thanks again though.

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