Mitel SMB Controller User Manual

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O
PERATIONS SUPERVISION
CHAPTER 6 OPERATION AND MAINTENANCE
Malfunction of the Mitel DECT radio unit
Malfunctions of Mitel DECT cordless phones
Table 6.17:Malfunction of the Mitel DECT radio unit
Error description Error cause / error handling
No radio connection in a coverage area. 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
Radio unit not activated. 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
Table 6.18:Malfunctions of Mitel DECT cordless phones (Sheet 1 of 2)
Error description Error cause / error handling
No display. • Switch cordless phone on and test
• Replace or charge battery
No radio link to radio unit; no aerial
symbol.
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
Impossible to dial. Keypad blocked (keylock)
• Unlock keypad

Mitel SMB Controller Specifications

General

Brand	Mitel
Model	SMB Controller
Category	Controller
Language	English