4. Summary of button functions
Functions
UBC-100 Status
Action
Beep
Turning ON
Power OFF
Press (MFB) button for 2~4 seconds. (Very Long)
Power ON Tone
Turning OFF
Power ON
Press (MFB) button for 4 seconds. (Very Long)
Power OFF
Tone
Volume Up
Talking
Briefly press (Volume up) button. (0.5s ; Short)
1 time
Volume Down
Talking
Briefly press (Volume down) button. (0.5s ; Short)
1 time
Transferring a call
Talking
Press (Volume up) or (Volume down) button for 1.5 seconds.
(Long)
2 times
B i fl
(MFB) b tt
(V l
) b tt
Answering a call
Talking
Briefly press (MFB) button, (Volume up) button, or
(Volume down) button. (0.5s ; Short)
1 time
Ending a call
Talking
Briefly press (MFB) button. (0.5s ; Short)
1 time
C ll
iti
T lki
P
(MFB) b tt
f
1 5
d (L
)
2 ti
Call waiting
Talking
Press (MFB) button for 1.5 seconds. (Long)
2 times
Last number redialing
Power ON
Press (MFB) button for 1.5 seconds. (Long)
2 times
Voice dialing
Power ON
B i fl
(MFB) b tt
(0 5
Sh t)
1 ti
(Handset must support
voice function)
(Voice Command)
Briefly press (MFB) button. (0.5s ; Short)
1 time
Enter pairing
Power OFF
Press (MFB) button for 5 seconds. (Ext Very Long
)
Power ON Tone
& 1-time beep
Rejecting a call
Ringing
Press (MFB) button for 1.5 seconds. (Long)
2 times
MIC Mute ON/OFF
Talking
Press both (Volume up) and (Volume down) button for
1.5 seconds. (Long)
2 times
