About HA1G DTMF Signaling

Regarding the operation of HA1G DTMF signaling. Many people want to know, this article is simply to answer some related doubts for everyone.

1: Principle of DTMF signaling transmission and reception:

Can be emitted in two ways:

(1) Use PTT ID to send DTMF, select PTT ID type: BOT, EOT, Both

(2) Send DTMF through the fast call list: The walkie-talkie enters the DTMF fast call list (Fast Call list), selects the DTMF ID prestored in the list, and presses the [MENU] key to send. Each DTMF system list can preset 10 fast calls. Call ID.

DTMF decoding method:

(1)ANI identification code

(2) Local ID code reception---single call

(3) Set Group Code: Group calling code---implement group calling

For specific operations, see the attached document below and the attached video below.

2: Remote stun/shake to death and wake-up functions

Remote stun: Remote stun the receiver by sending a DTMF code that is the same as the receiver's stun ID;

Wake-up: Remote wake-up of the stunned receiver is achieved by sending a DTMF code that is the same as the receiver wake-up ID;

Stun Type: stun type, select stun state/shake to death state, "Stun TX": After being stun, the walkie-talkie only disables the transmitting function, "Stun RX/TX": After being stun, the walkie-talkie disables the transmitting and receiving functions

Stun ID: The remote stun/shake to death identification ID of this machine;

Revive ID: The wake-up identification ID of this machine.

Note: The selection signaling system needs to be set on the channel

Summarize

This article mainly talks about the relevant knowledge of HA1G's DTMF. Because there is a lot of content, I will describe it in more detail in the next article.