NEC DT750 User Manual - page 34
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104
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28
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DTMF Tone
3
4
5
[Talk]
1/1
1 RTP Alarm
Key Touch Tone
Hold Music
Prefix
↓
Back
OK
Select 0 Automatic, 1 Disable or 2 Enable
(see the following table). Then, press
(Enter)
or
OK soft key.
[DTMF Tone]
1/1
0 Automatic
1
Disable
2
Enable
Back
OK
Menu Items
Descriptions
0 Automatic
Follow the setting on the System. If no
setting is made in the System, the
default setting (DTMF=ON) is applied.
1 Disable
Follow the setting on the terminal (OFF).
2 Enable
Follow the setting on the terminal (ON).