Telephone Dead - Nortel ICS Install Manual

592 / Problems with telephones
If the display is still unreadable
1. Go into Maintenance in programming and disable the
problem telephone.
2. Replace the problem telephone with a working one.
3. Enable the working telephone.

Telephone dead

1. Run a Station Set Test (≤°‚fi).
Detailed instructions are contained in the Modular ICS 7.1
System Coordinator Guide.
2. If more than one telephone is affected, refer to
Data Module down on page 620.
3. Check for dial tone.
4. Check the display.
5. If the problem persists, replace the telephone with a
working set of the same type. This ensures the
programming is downloaded to the new set.
6. Check the internal wiring at both the modular jack and the
distribution cross-connect. A TCM port should have
between 15 and 26 V DC across the Tip and Ring when the
telephone is disconnected.
7. Check the line cord.
Modular ICS 7.1 Installer Guide N0130943 02