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Battery indicator:
•
The battery is fully charged.
•
The battery is half drained (50%)
•
The battery is low. When the battery is low, you will hear warning signals and the
battery symbol
2
K e ys/ L ED
HA N DSET
1.
Display
2.
PC/VoIP key
3.
Up/Call log key
4.
Handsfree key
5.
Programming key/INT key
6.
Line key
7.
Redial/Pause key
8.
Microphone
9.
Volume/Ringer key
10.
Alphanumeric keys
11.
Delete/Mute key/Escape key
12.
Down/Flash key
13.
*/Phonebook key
BA S E
14.
Paging key
15.
Line/Charge indicator
Topcom Butler 4812 USB VoIP
on the display will blink.
/
/P
/
/R
(LED)
Topcom Butler 4812 USB VoIP
12
INT
Esc
5
/OK
VoIP
2
13
/
9
15
14
1
6
3
11
4
10
7
8
7
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