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C
6
HAPTER
Malfunction of the Mitel DECT radio unit
Table
6.17:Malfunction of the Mitel DECT radio unit
Error description
No radio connection in a coverage area.
Radio unit not activated.
Malfunctions of Mitel DECT cordless phones
Table
6.18:Malfunctions of Mitel DECT cordless phones (Sheet 1 of 2)
Error description
No display.
No radio link to radio unit; no aerial
symbol.
Impossible to dial.
Error cause / error handling
Check LED on radio unit:
LED is flashing red (short red phase):
•
Check power supply / line length of DSI
bus cable
LED is flashing red (long red phase):
•
Check DSI bus cable
•
Unplug DSI bus cable for one minute,
then reconnect
LED is flashing green (long green phase):
•
All B channels busy
LED on radio unit is flashing red/green
(various patterns):
•
Radio unit in startup phase
LED on radio unit is flashing red (long red
phase):
•
Radio unit defective
If LED on radio unit not flashing:
•
Check trunk connections
•
Radio unit defective
•
LED of the radio units deactivated
throughout the system
Error cause / error handling
•
Switch cordless phone on and test
•
Replace or charge battery
Check coverage area (within range of a radio unit).
•
Check radio units in this section
Cordless phone not registered with the system
•
Cordless phone registered
Keypad blocked (keylock)
•
Unlock keypad
O
PERATIONS SUPERVISION
O
M
PERATION AND
AINTENANCE
244
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