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Accessories
To activate Headset Preset:
Press and hold for at least 4 seconds.
A short acknowledgement tone signal is heard, and the headset key lamp flashes for a few seconds.
To cancel Headset Preset:
Press and hold for at least 4 seconds.
A short acknowledgement tone signal is heard, and the loudspeaker key lamp flashes for a few seconds.
To check the current preset setting:
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 75.
Dialog 4220 Lite/Dialog 4222 Office | 85 |
