Amplicomms BigTel 49 PLUS Operating Instructions Manual page 10

Telephoning
Increasing the receiver volume on +40 dB.
The receiver volume can be increased by pressing the left−hand side of
the loudspeaker key marked +40 dB
Ý
Tone control
The tone of the receiver can be adjusted using the corresponding slide
control on the right−hand side of the housing.
Tone adjustment is only possible when the receiver volume
+40 dB boost button is on.
Ringing volume
The ringing volume can be adjusted using the corresponding slide control
on the right−hand side of the housing.
Talk time display
The duration of a call is displayed in minutes and seconds during the call.
Handsfree
Use this function to listen to the caller via the loudspeaker.
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Adjusting the handsfree volume
The handsfree volume can be adjusted using the corresponding slide con-
trol on the right−hand side of the housing.
10
Increasing the volume on + 40 dB
Adjust the tone using the slide control
Adjust the volume using the slide
control
Switch on handsfree mode
Deactivate handsfree mode
Adjust the volume using the slide
control