AT&T 3.0 manual Check the LEDs on the module

Fixing Telephone Problems

NOTE:

Refer to “Troubleshooting Trunk Problems” in Chapter5 if the reported problem is echo during conversations on T1 trunks with GS emulation connected to a toll office.

1Check modular connections in the telephone for loose or broken connectors.

2Check modular connections in the connecting blocks for loose or broken connectors.

3Check modular connections in the control unit for loose or broken connectors.

4Check transient errors in the error logs for any possible clues.

5If local power is provided, check the power supply connectors and voltages.

6Replace the telephone with a telephone that works to determine whether the problem is the telephone itself.

7If trouble disappears, replace the problem telephone.

8If the replacement telephone does not work properly, check the other telephones connected to the same module.

■If these telephones work, the problem may be the wiring, or there may be a single-port failure on the module. To check the wiring, go to Step 12.

■If these telephones do not work, the fault is probably in the module. To check the module, go to Step 9.

9Check the LEDs on the module.

If the module does not have LEDs, see “System Status” in Chapter 4 for more information.

10Check the error log for relevant messages. See Chapter 2, “Error Logs, Access Logs, and System Inventory.”

11Replace the faulty module.

Telephone Problems 3–3