Siemens 300 - Manual (Page 20)

20
Putting into service
Note:
The mobile unit switches off completely if you press the On/Off key for too
long.
The telephone must be "on" and "Station1" displayed
in order to activate any of the features. Station2, 3
or 4 can also be displayed, depending on the current
station (system).
Note:
All functions confirmed with the line key can also be executed by replacing the
mobile unit in the charging shell.
Station 1
TEL.BOOK REDIAL