Error type 0: Run the short test sequence first. If every test passes, run the long test sequence. Refer to each appropriate test’s description, and follow its recommended procedures.

Error type 18: Maintenance personnel have busied out the port in question. Release the port by using release port location.

Error type 130: The media module has been removed or has been insane for more than 21 minutes. To clear the error, reinsert or replace the media module.

Error type 257: Problems transmitting to the voice terminal. This problem can be caused by defective wiring that can cause varying degrees of problems on different types of sets. Sets such as the 7410 appear to be more susceptible to wiring problems than others.

Error type 1537: There is a problem with the link to the voice terminal. This can be ignored if no user complaints are received. Otherwise, make sure the voice terminal is connected, check for defective wiring, check for a defective voice terminal, and move voice terminal to a jack that is closer to the switch number of feet of wiring between the jack and the switch. If the problem still exists, replace the media module. Once the problem has been resolved, the alarm is retired after a predetermined amount of time.

Error type 1793: The local loop test failed. Each failure increments an internal counter by 1 when the local loop test fails. The counter is decremented when the loop test passes. When the counter reaches a threshold of 3, an on-board MINOR alarm is raised.

Error type 2049: The NPE Crosstalk test failed. The internal counter increments by 1 when the NPE Crosstalk test fails. The counter is decremented by 1 when the NPE Crosstalk test passes. When the counter reaches a threshold of 3, an on-board MINOR alarm is raised and the board is taken out of service.

Error type 2305: The station went off-hook while it was in the ready-for-service state. Use status station to determine the state of the station. The off-hook should have moved the station to ready-for-service. No action is necessary.

Error type 3840: No terminal is connected to the Digital Line board. No maintenance action is required.

Error type 3841: The media module’s message buffer is full. This may be caused by having many display phones with heavy traffic connected to the media module. No action is necessary.

Error type 2304: Internal system error. No action is necessary.