Ericsson DIALOG 4220 - Manual (Page 7)

7 Dialog 4220 Lite/Dialog 4222 Office
Description
4 Diversion (Follow-me)
For indicating/activating and deactivating Diversion (Follow-me).
See section “ Call Forwarding ” on page 39. The feature can be
removed or moved to another programmable function key by your
system administrator.
5 Programmable function keys
To program numbers or functions, see section “ Programming of
function keys ” on page 69.
6 Transfer
For transffering calls, see section “ During Calls ” on page 33.
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
“ Headset (optional) ” on page 83.
11 Loudspeaker 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.
12 Mute
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.
13 Volume control
To change the volume. See section “ Settings ” on page 69.
14 Loudspeaker