How To Determine Troubles
For your convenience, before you call for repair service, check
to see if the problem is in your phone, the inside phone wiring,
or in the outside line by using the NID (Network Interface
Device) on the outside of your home.
The NID makes it easy for you to:
- Disconnect the service
- Install new wiring
- Do your own testing if a telephone does not
After unscrewing the lock on the front of the NID with a
screwdriver or coin, you will see two test plugs when you open
the box. One plug is designated for Line 1 (for phone service)
and the other is designated Line 2 (for a second phone line or
To better determine what your phone trouble is, you
will be asked to plug a known working, non-cordless,
phone into the Line 1 test plug jack.
From that point, Citizens Maintenance & Repair will walk you
through trouble-shooting steps using this diagram
Below is a diagram of what you can expect to see on
the inside of the NID. Regardless of the model of your
box, the internal components are the same.