Description

4Diversion (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.

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

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Ericsson 4220 Diversion Follow-me, Programmable function keys, Transfer, Triple Access Line, Clear, Headset key, Mute