Operation Manual

36
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 "appointment" or "ans-
wering machine" (only tiptel 291/293).
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 re-
tained).
Access to the public exchange
If the telephone is operated with a telephone system, you may have to dial the line prefix
before the subscriber number for outgoing calls. For some telephone systems, you need to pro-
gram the line prefix with your telephone so that the prefix is automatically entered in the call list.
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 to select
"CO line".
6. Press the  button.
7. Now, enter the line prefix via the
numeric keypad (4 digits as a maxi-
mum).
8. Press the  button.
Every time you press the button, the display
switches between the available functions.
The display shows "system".
The display shows "ISDN".
The display shows "CO line".
The display shows a cursor for entries.
Your entry is displayed.
The entry is stored.