Operation and Maintenance
Function Office 135 Office 160 Mitel 600 DECT
Menu for display
contrast, display
backlighting, area tone
and overload tone. See
Operating Instructions
for details.
# # —
Configuration mode for
hotkey. See Operating
Instructions for details.
Hotkey Hotkey Hotkey
Switch error messages
on/off (default value:
Off). Messages relating
to the following errors
cannot be switched
on/off: HS logon error,
incorrect location reg-
istration, no locatable
radio unit, network,
system or radio unit
overload.
5 + 3 5 + 3 —
6.5.2.9 Overload code displays Office 135 / Office 160
The overload code displays on the cordless phones Office 135 and Office 160 can be activated and
deactivated using the following key combination (toggle function): Long-click key 5 and then long-click key
3 (long = long-click = 2 seconds).
The overload code display is always deactivated after system initialization.
Table 100: DECT overload code displays Office 135
Code Name Error description Error handling
05 / 06 IPEI Not Accepted Cordless phone already
registered with the
system under a different
number.
• Delete cordless phone
registration.
• Try again
10 Authentication failed Registration error Try again
Release 7.1
System Manual for Mitel SMB Controller 268
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