switel DCT537X Mode D'emploi page 134

Telephoning
Adjusting the receiver volume
The volume can be adjusted to one of 5 settings during a call.
1 − 5 x I
Talk time display
The duration of a call is displayed in minutes and seconds during
the call.
Handsfree
Use this function to listen to the caller via the loudspeaker.
™
™
Muting the microphone in the handset
The microphone in the handset can be activated and deactivated
during a telephone conversation.
¬
¬
85
Key lock
The key lock prevents buttons on the handset activating functions
inadvertently.
2 sec G
2 sec G
Handset ringing tone
The ringing tone on the handset can be deactivated.
2 sec H
2 sec H
134
83
Calls can still be taken in the normal way even when the
key lock function is activated.
86
Only the base station rings in the event of an incoming call,
not the handset.
Select the required volume
Activate the handsfree facility
Deactivate the handsfree facility
84
Deactivate the microphone (muting
on)
Activate the microphone
Activate the key lock function
Deactivate the key lock function
Deactivate the ringing tone
Activate the ringing tone