Ericsson Dialog 4223 Professional, User Manual

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11 Dialog 4223 Professional/Dialog 4225 Vision
Description
6 Callback
Indicating/activating Callback. See section “ When you receive a
busy tone ” on page 40. The feature can be removed or moved to
another programmable function key by your system administrator.
7 Diversion (Follow-me)
Indicating/activating and deactivating Diversion (Follow-me). See
section “ Call Forwarding ” on page 62. The feature can be removed
or moved to another programmable function key by your system
administrator.
8 Programmable function keys
Program numbers or features. See section “ Programming of
function keys ” on page 98.
Note: The key marked with a “b” is also used to program a
melody, see section “ Melody Ringing ” on page 109 .
9 Triple Access Line
Handle calls. Line 1 and 2 are available both for incoming and
outgoing calls. Inquiry can only be used for outgoing calls.
10 Microphone
Used for handsfree conversation.
11 Clear
Disconnect calls or exit a feature. Can always be pressed instead of
replacing the handset.
12 Headset key
Handle headset calls and activate Headset Preset. See section
“ Headset (optional) ” on page 117.
13 Loudspeaker on/off
a. Activate handsfree conversation. See section “ During Calls ” on
page 52.
b. Activate Loudspeaker Preset. See section “ Headset Preset ” on
page 118.
14 Mute
a Switch the microphone on or off during a call. See section
“ Mute ” on page 53.
b Switch off the ring signal in idle mode or when ringing. See
section “ Mute ring signal ” on page 108 and “ Silent Ringing ” on
page 108.
15 Volume control
Adjust the volume. See section “ Settings ” on page 98.
16 Loudspeaker