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DTMF CODE
Dual-tone multi-frequency (DTMF) signaling is a method used for telecommunication signaling over
analog telephone lines. It is employed for various applications including automated dialing, remote
control of systems, and as an access method for secure communications. Each DTMF code is a
combination of two specific frequencies, representing a unique digit or character, enabling precise
and reliable command transmission.
30
DTMF Code Entry and Transmission Guide
1
. Access the DTMF code editing interface.
2
. Use the keypad to enter the DTMF code you need to send.
3
.
N
ote:
After completing the input, press the PTT button to transmit the code.
Master Your DTMF Code
N
ote: The corresponding codes are as follows
·
If the code is fewer than 6 digits, press the FM key to finish.
· In edit mode, press Side Key 3 briefly to delete the code.
· If the code is cleared, press Side Key 3 again to exit DTMF edit mode.
0-9
0-9 A B C D * #
Customizing the short press of Side Key 3 to quickly enter DTMF mode is only supported through menu
item 42.
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