Mark Farver wrote:

Is there something special that needs to be done to allow a T100P/T400
to respond to a remote loop request?


For a T1 the phone company would expect to see their Network Interface Unit (NIU) which can be looped with a special repeating code. Using a different repeating code they would expect to be able to loop up a Circuit Service Unit (CSU). The NIU belongs to the phone company. The NIU would belong to the customer.


A CSU is not needed for voice TDM services and so does not usually exist.

I do not believe the Digium T1 cards have built in the CSU functionality and so the phone company will not be able to loop it. When I have talked with the phone company I just tell them that there is not a CSU.

If CSU functionality is required, it would require a change to the driver.

Don Pobanz

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