DTMF Sounder Page
e
1209Hz
f
1336Hz
g
1477Hz
h
1633Hz
GO!
1
2
3
A
a
697Hz
4
5
6
B
b
770Hz
7
8
9
C
c
852Hz
*
0
#
D
d
941Hz
Sequence to convert (30 digits max.)
play
download
clear
Browser doesn't support tone play.
Browser doesn't support download.
Pulse length (ms)
20
1000
250ms
Gap length (ms)
0
1000
250ms
Instructions / contact
To generate tones, either press the on-screen buttons live (after pressing the striped "GO!" button first of all), or enter a sequence of numbers / letters into the "Sequence to convert" box. A single DTMF tone (which are usually sounded in pairs) can be entered using a lower-case letter. A pause (in lieu of a tone) can be entered with "p".
Email address for comments and
so forth:
click here