Operating Instructions

5
Keys
Switching the Receiver On
By inserting the battery (refer to Changing the Power Source), the SWISSPHONE DE900 receiver is automatically switched on.
Confirmation key
(read messages, con-
firm alarm,
confirm selection)
Scroll key
(display main menu,
scroll through menus and messages,
change settings)
Return key
(alternately display user – and status information,
leave selected menu or selected message)