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The DTMF (Dual Tone Multi Frequencies) is a “peepoppa” sound heard from a
telephone receiver when a call is made on a push phone line. This radio can send out
the DTMF code by using the microphone keys or recalling a memory.
A DTMF code with a maximum of 16 digits can be registered in up to 9 channels in the
memory. It is convenient to register beforehand telephone numbers that are used for
connecting to a public line from a phone patch.
The DTMF code is issued based on a combination of the following frequencies.
1209 Hz
1336 Hz
1477 Hz
1633 Hz
697 Hz
1
2
3
A
770 Hz
4
5
6
B
852 Hz
7
8
9
C
941 Hz
0
#
D
1
Press
for one second or longer
The set-up menu will be displayed.
2
Touch
The menu list will be displayed.
3
Turn
, or touch the screen to select
Touch
The DTMF memory screen will be displayed.
5
Turn
or touch the screen to select the channel to
be registered
6
Touch the selected channel
The character input screen will be displayed.
