MTM800 PEI AT commands

[RA1AIE]

Hi all,

I have MTM800 and I need ability to get calling party ISSI via PEI when group call received.

I have connected to PEI via TTL-USB converter. Command "AT" returns "OK".
But nothing appears on terminal when radio receiving group call.

I asked German HAM's, they made DMO repeater with APRS linking. They told me AT command for redirecting info to PEI: "AT+CTSP=2,0,0". But MTM800 returns "CME Error 4" to this command...
My MTM800 has firmware R08.000.8462. I tested this command on MTM800E with firmware R17.000.8462 - and all works.

Can anyone help me with this? How to enable this funcional on MTM800?

Also, is it possible to control PTT via AT commands?

Thanks.

[saugumas]

Hi,

maybe AT routing is disabled by default and it's possible to restore it via depot?
******** loves to play tricky games with AT routing and it's command set variate from ETSI. Had some issues with CM5000.

For PTT control maybe this will help you https://www.funkmeldesystem.de/archive/index.php/t-48678.html

[uy0101]

try also with:
at+ctsp=1,3,10

and then:
at+cmgs0,8<cr>
0A<ctrl-z>

uy

[edyasia]

Hi guys... I know is a older thread. I am technical service in a police department.

I need toó récord id con a talkgroup... Ra1a1e; what pin of port com on mtm800 you use? I have a mtm800 monocolor.

Rhanks un advance.

Edyasia