******** ISSI change using AT command

[es4tix]

Hi!
There is setting in CPS to change ******** tetra radio ISSI using AT command. Anybody tried it? What AT command is that?

[es4tix]

Got the answer.
AT+CNUMF=0,(ISSI)
It works.

[harout]

Hello, the radio and computer are connected. Is it using a data cable or software to use a computer's super terminal?

[es4tix]

Use usual hyperterminal, which can send AT commands through serial connection

[harout]

使用常用的超级终端，它可以通过串行连接发送 AT 命令

Ok, I'll test it, thanks.

[es4tix]

Ok, I'll test it, thanks.

yes. you need to send the string "AT+CNUMF=0,ISSI", where ISSI is your new ISSI

[harout]

I conducted a test using the radio of MTM800 and the programming cable of COM port, and there was no response to any input commands. Is there a problem with my connection method?

[es4tix]

I conducted a test using the radio of MTM800 and the programming cable of COM port, and there was no response to any input commands. Is there a problem with my connection method?

It can be:
1. wrong connection parameters (speed, parity etc, by default it is 9600 bps, 8N1)
2. Wrong wiring, should be TX -> RX, RX -> TX. Just try to swap pairs
3. Wrong PEI interface speed in codeplug