Aastra Dialog 4220 Lite User Manual page 49

Ericsson Dialog 4222
Press
Either the Loudspeaker or Headset key lamp is turned on,
indicating the current preset setting.
Press
Headset Volume
Use the Volume keys to change the volume of the
headset.
Press to change the volume.
On the Dialog 4222 Office phone, a volume symbol is
shown for a few seconds (replacing your extension
number). The set headset volume level is stored.
To adjust the volume for the loudspeaker of the phone
during Group listening:
Press
Press to change the volume.
On the Dialog 4222 Office phone, a volume symbol is
shown for a few seconds (replacing your extension
number). The loudspeaker volume level is stored.
Press.
For people with impaired hearing, the headset hearing
volume level can be extra amplified, use the same
procedure as in section "Handset and loudspeaker
volume" on page 42.
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