Description
Dialog 4223 Professional/Dialog 4225 Vision8
4 Diversion (Follow-me)
For indicating/activating and deactivating Diversion (Follow-me).
See section “Call Forwarding” on page 60. 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 96.
Note: The key marked with a “b” is also used to program a
melody, see section “Melody Ringing” on page 107.
6 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.
7 Microphone
Used for handsfree conversation.
8Clear
To disconnect calls or exit a function. Can always be pressed instead
of replacing the handset.
9 Headset key
To handle headset calls and activate Headset Preset. See section
“Headset (optional)” on page 115.
10 Loudspeaker on/off
a. To activate handsfree conversation. See section “During Calls”
on page 50.
b. To activate Loudspeaker Preset. See section “Headset Preset”
on page 116.
11 Mute
a To switch the microphone on or off during a call. See section
“Mute” on page 51.
b To switch off the ring signal in idle mode or when ringing. See
section “Mute ring signal” on page 106 and “Silent Ringing” on
page 106.
12 Volume control
To change the volume. See section “Settings” on page 96.
13 Loudspeaker
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