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System settings
Factory pre-set
You can resume the factory pre-set parameters at any time.
1. Press the or button to select
"settings".
2. Press the button.
3. Press the or button to select
"system".
4. Press the button.
5. Press the or button.
6. Press the button.
T
o resume the factory pre-set:
7. Press the button.
T
o interrupt:
7. Press the button.
Every time you press the button, the display
switches between the available functions.
The display shows "appointments".
The display shows "system".
The display shows "ISDN".
The display shows "factory pre-set".
The warning message "ATTENTION! All data
are erased" is shown in the display.
The factory pre-set is resumed.
The function is interrupted (the data are
retained).
