Phonocell 6/853 Manual De Instrucciones página 14

Functions
6
1 Use to reduce Volume. Keeping key pressed for some seconds,
a previously connected second Device will receive request of
Interphone-communication.
2 LED-indicator.
3 ON/OFF, re-dial latest number, accept/refuse call, accept/refuse
interphone-communication.
4 Current-supply/connection for microphone and earpiece.
5 Use to increase Volume. Keeping key pressed for some seconds, a
previously connected second Device will receive request of
Interphone-communication.
6 Earpiece.
7 Microphone.
4
3
2
1
14
7
5