Description
4Diversion (Follow-me)
For indicating/activating and deactivating Diversion
5Programmable function keys
To program numbers or functions, see section “Programming of function keys” on page 69.
6Transfer
For transffering calls, see section “During Calls” on page 33.
7Triple Access Line
For handling calls. Line 1 and 2 are available both for incoming and outgoing calls. Inquiry can only be used for outgoing calls.
8Microphone (Dialog 4222 Office only) Used for handsfree conversation.
9Clear
To disconnect calls or exit a function. Can always be pressed instead of replacing the handset.
10Headset key
To handle headset calls and activate Headset Preset. See section “Headset (optional)” on page 83.
11Loudspeaker on/off
a.To activate Group listening. See section “During Calls” on page 33.
b.To activate handsfree conversation (Dialog 4222 Office only). See section “During Calls” on page 33.
c.To activate Loudspeaker Preset (Dialog 4222 Office only). See section “Headset Preset” on page 84.
12Mute
a.To switch the microphone on or off during a call. See section “Mute” on page 34.
b.To switch off the ring signal in idle mode or when ringing. See sections “Mute ring signal” on page 76 and “Silent ringing” on page 76.
13Volume control
To change the volume. See section “Settings” on page 69.
14Loudspeaker
Dialog 4220 Lite/Dialog 4222 Office | 7 |