- FEATURE KEY
MICROPHONE ON/ OFF
The MIC lamp shows the status of the built- in microphone.
To change microphone status
Press Feature and 1 to turn the microphone from on to off, or from off to on.
TO SELECT RINGER TONE
The D
75 has 3 kinds of ringer tones that you can select.
term
Press Feature and 3.
The LCD displays the selected tone
Tone No. Frequency Modulation
(Hz) (Hz)
1 480/ 606 16
2 480/ 606 8
3 1285/ 1024 16
TO ADJUST RINGER TONE
NOTE: Access to feature is based on data assignment.
Press Feature and 3.
Ringer activates.
The LCD displays the selected tone
Press 3. Next tone is selected.