Support A36plus MAX DTMF Code

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.

DTMF Code Entry and Transmission Guide

Master Your DTMF Code
1. Access the DTMF code editing interface.
2. Use the keypad to enter the DTMF code you need to send.
- **Note:**
- 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.
3. After completing the input, press the PTT button to transmit the code.

The corresponding codes are as follows

Keypad	Corresponding Code
0-9	0-9
Menu	A
Up	B
Down	C
Back	D
A/B	*
FM	#

Customizing the short press of Side Key 3 to quickly enter DTMF mode is only supported through menu item 42.