5years, your mailbox is full.

In reply:

Part of PRI specs is transport of CID name and number. This is not the case with a T1 which only transports the CID number.

The DX-120 with PRI shows the CID name on the display if available. If not then it shows the number just like it does on copper lines.

Some providers charge extra for this feature. Insure that CID name/number is provided.

I now have 7 DX PRI's and it works quite well.

--Bill.