Description
Dialog 4224 Operator
12
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.
