Troubleshooting; System Not Initializing; No Incoming Calls; Extension Outgoing Locked - Mitel 3000 Installation And Maintenance Manual

Troubleshooting

All faults can normally be traced quite readily to a particular PCB. Before replacing any PCB, fault conditions
should be checked to see if programming or user mis-operation is the cause. The Feature Phone display will often
indicate which system features have been set.

System not initializing

Check that all system cards have been properly installed, with all connectors fully located.

No incoming calls

Check that all phones programmed to ring are not programmed for DND or Forwarding.

Extension outgoing locked

If you cannot get outgoing access on a two-wire telephone, move a Feature Phone to the extension. If it shows
"Unlock The Phone", the extension has been locked and you will need the unlock code to unlock it.

No extension dial tone

Check that the extension has not been disconnected through programming.

Not seizing a line for outgoing calls

Check if the line has been programmed for incoming calls only.
Check if the line is equipped in programming.
Check that the key is programmed for line access.

Door Phone not operating

Check the programming for the door extension.

Phone reset

Remember the simple phone reset code 739, which can be dialed from any extension phone.

System reset

Reset: To do a software reset of the Mitel 3000, press the reset button on the CCU. You may also
choose programming mode and choose system, reset options, and reset.
Reset to default: To do a cold reset of the Mitel 3000, enter programming mode and choose system,
reset options, and reset to default.
There are two system reset options available. Reset! – Resets the system and
cuts off all established calls. Reset To Default! – Resets the system, cuts off
all established calls and removes all programming from the system. These
are complete system resets, not individual extension resets. They should be
used with extreme care, preferably only as directed by your service
consultant.
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Mitel 3000
Installation & Maintenance Manual