User guide
26
General Information Telephoning
Telephonin g
General Information
Description of Operating
Steps
The following descriptions list all the
softkey functions of the left and
right key below the display. These
functions can be activated by press-
ing the arrow keys or the
OK
softkey.
Switching the Handset
On/Off
You can switch the handset off by
pressing
C for longer than one sec-
ond in the idle state. You switch it on
by pressing
C again or by placing
the handset in the charging station.
No ringer or alarm signal is emitted
(e. g. for an appointment call) while
the handset is switched off.
Speaker/Hands-free Use
To allow several people in the same
room to take part in a call, press the
loudspeaker key
L during a call. Re-
peat to switch off.You will achieve
the best quality when the handset is
in a vertical position; in other words
when neither the loudspeaker nor
the microphone are covered.
Setting the volume
During a call you can adjust the
speaker or loudspeaker volume
(with an OpenPhone 27 also the
headset volume) to one of a number
of levels (three levels with an
OpenPhone 26, seven levels with an
OpenPhone 27). You can monitor the
setting in the display.
To adjust the earpiece (or the head-
set) volume, press the arrow keys; to
adjust the loudspeaker volume,
switch the loudspeaker on and then
press the arrow keys.
Note: When the telephone is in its
idle state again, it reverts to the de-
fault menu setting. You can change
the default setting in the “Phone
settings” menu (see also “Phone set-
tings” Menu starting on page 63).
Muting
During a call you can switch your
handset's microphone off with
Mute
. The person at the other end
of the line can no longer hear you.
Unmute
switches it back on.










