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Ericsson 4220 User Manual

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7
Dialog 4220 Lite/Dialog 4222 Office
Description
4
Diversion (Follow-me)
For indicating/activating and deactivating Diversion (Follow-me). 
See section “
removed or moved to another programmable function key by your 
system administrator.
5
Programmable function keys
To program numbers or functions, see section “
6
Transfer
For transffering calls, see section “
7
Triple 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.
8 
Microphone (Dialog 4222 Office only)
Used for handsfree conversation.
9
Clear
To disconnect calls or exit a function. Can always be pressed 
instead of replacing the handset.
10
Headset key
To handle headset calls and activate Headset Preset. See section 
11
Loudspeaker on/off
a. To activate Group listening. See section “
b. To activate handsfree conversation (Dialog 4222 Office only). 
See section “
c. To activate Loudspeaker Preset (Dialog 4222 Office only). 
See section “
12
Mute
a. To switch the microphone on or off during a call. See section 
b. To switch off the ring signal in idle mode or when ringing. See 
13
Volume control
To change the volume. See section “
14
Loudspeaker