Siemens 30ISDN - Manual (Page 25)

Convenient and secure telephone communication
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kap01.fm5 27.11.98 Profiset 30isdn engl.: A30853-X300-B107-1-7619
Convenient and secure telephone communication
Activating/deactivating open listening
If those present in your room wish to listen to your con-
versation, you can switch on the loudspeaker.
Switching to mute (consultation in the room)
If there are times when you do not want your calling party
to hear your conversation, e.g. if there is a consultation in
the room, you can switch your telephone to “mute“.
d
A call is in progress.
l
To switch on the loudspeaker press the Loudspeaker key.
The symbol L appears on the display.
l
To switch off the loudspeaker press the Loudspeaker key.
The symbol L disappears on the display.
You can adjust the volume of the loudspeaker
and the handset with the Plus + and Minus -
keys.
d
A call is in progress.
m
To activate the mute function press the Mute key.
The symbol M appears on the display.
The mute function is activated.
m
To deactivate the mute function press the Mute key again.
The symbol M disappears on the display.
The mute function is deactivated.