AASTRA 4187 Plus for BusinessPhone User Guide EN - Manual (Page 70)

Settings
BusinessPhone – Dialog 4187 Plus 70
Handset, Loudspeaker and Headset
Volume
Use the volume keys. The volume controls affect the handset, the
headset or the handsfree mode, depending on which mode is
active when changing the volume. ì
Press to change the volume.
There are 8 steps from minimum to maximum level.
Note: The volume controls for the handset, headset and
handsfree mode are independent of each other. Changing
the handset volume for example does not effect the
headset or handsfree volume or vice versa.
Ringing Signal
Ringing volume
You can choose between four settings for the ringing signal
volume: auto, low, medium and high. ²
Press.
¯
or
·
Press to navigate to the RINGER VOLUME menu.
´ ²
Press to enter the menu.
The display shows the current setting, for example:
Note: The default setting is A (AUTO): the ringing starts at
low volume, the third and fourth ring signal are at medium
volume and the fifth and following signals are at high
volume.
RINGER VOLUME
FOR AUDIO LIFT HANDSET A