Description
Dialog 4224 Operator12
15 Speech left key / Speech right key
Speech left
To talk to the source party.
Speech right
To talk to the destination party.
16 Microphone
Not used.
17 Answer/Extend
To answer and extend incoming line calls. The key is also used to
start automatic ring signal and to put a call on hold.
18 Headset key
To switch from handset to headset. The key lamp shows steady
light when calls are connected to the headset. See section
“Accessories” on page 88.
Note: Headset is optional.
19 Announce
To initiate extending with announcement or Camp On to busy
extension or external line.
20 Mute
During a call: To switch the microphone on or off.
In idle mode or when ringing: To switch off the ring signal.
21 Volume control
To change the volume.
22 Loudspeaker for ring signal
23 Handset
Supplied with hearing aid function as standard.
Please note: The handset may attract and retain small
metal objects in the earcap region.
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