AASTRA 4224 Operator for MX-ONE User Guide - Manual (Page 23)

23 Dialog 4224 Operator
Preparing the terminal
Handset and headset volume
Use the Volume keys to change the volume of the handset or
headset during a call. ì
Press to change the volume.
The volume level is stored.
For people with impaired hearing, the handset hearing volume level
can be extra amplified. To change the level:
ê *5
Press simultaneously for at least 1 sec.
A tone signal is heard, and the display shows
Setting Mode
. Ò
< Speech Press to set or reset the volume level.
Key lamp on indicates amplified volume level. Key lamp off
indicates default volume. #
Press to finish setting.
When extra amplification has been selected, the Line 1 key lamp
turns off.
Note: A level change also effects a headset connected to
the headset outlet.