NEC DT750 User Manual - page 27
1.
21
0
Automatic
1
2
3
4
5
6
7
2
Offhook Ring
Headset Ring
3
4
Ring Tone
5
6
No.
Menu Item
Frequency (Hz)
Remarks
1st
2nd
0
Automatic
520
660
16Hz modulation
1
Tone Type1
520
660
16Hz modulation
2
Tone Type2
520
660
8Hz modulation
3
Tone Type3
1400
1100
Door Phone
4
Tone Type4
1100
No modulation
5
Tone Type5
540
No modulation
6
Tone Type6
1100
1400
16Hz modulation
7
Tone Type7
660
760
16Hz modulation
8
Tone Type8
1100
Envelope
9
Tone Type9
-
Door Phone
Melody
10
Tone Type10
-
Melody 1
11
Tone Type11
-
Melody 2
12
Tone Type12
-
Melody 3
13
Tone Type13
-
Melody 4
[Incoming Call]
1/1
[External Call]
1/3
1
Ring Volume
Illumination
Headset Ring Volume
Tone Type 1
Tone Type 2
Tone Type 3
Tone Type 4
Tone Type 5
Tone Type 6
↓
Back
OK
Tone Type 7
↓
Back
OK
Select 1 External Call when setting the ringer
tone for external calls. Select 2 Internal Calls
when setting the ringer tone for internal call. Then,
press
(Enter)
or OK soft key.
[Ring Tone]
1/1
1
External Call
2
Internal Call
3
IM
↓
Back
OK
Select a desired tone type and then press
(Enter)
or OK soft key.
Note:
The currently enabled item is highlighted.