AASTRA 600d for Aastra 800 and OpenCom 100 User Guide EN - Manual (Page 45)

Basic Functions
43
Telephone Lock
If you wish to permit another person to temporarily use your telephone, you can
activate the telephone lock for the mobile unit via the
> System Menu >
Protection menu (see page 123). Dependent on the system configuration, when the
telephone lock is activated, the functionality range is restricted on the mobile unit,
incl. possibly restricted dialling rights.
Speaker/Handsfree Use
Press the loudspeaker key before or during a call to allow multiple persons to par-
ticipate in the call. Repeat the process to switch it off. When the loudspeaker function
is activated, the
symbol appears on the display.
To obtain the best speaker/handsfree quality, make sure neither the speaker nor the
microphone are covered up. When placing the mobile unit into the charging station
during a call, the speaker/handsfree is automatically activated.
Note
Do not hold the telephone in the handsfree mode next to your ear as the volume can
be very high.
Adjusting Volume During a Call
During a call you have seven levels to adjust the volume of the receiver/headset or the
loudspeaker (during speaker/handsfree, see page 43).
Aastra 610d
Press the
/ sidekeys to increase or reduce volume for the current call.
Alternatively, you can use the (quieter) und (louder) navigation keys by pressing
and holding them to begin with. To make a volume adjustment, push them in quick
succession.
Aastra 620d, Aastra 630d
Press the upper or lower sidekeys to increase or reduce volume for the current call. If
the keys have been programmed with functions , press and hold them to begin with.
To make a volume adjustment, push them in quick succession.
Alternatively, you can use the
(quieter) und (louder) navigation keys by pressing
and holding them to begin with. To make a volume adjustment, push them in quick
succession.