Question

we´d like to use the  TRB142 for a existing SMS Application with RS232

we need the comands AT+CMGR=1, AT+CMGF=1, AT+CMGS="+49...."

does the TRB142 support these comands?

e.g. for  AT+CMGR=1 we do not get the correct response

AT+CMGR=1

OK

should be e.g. for empty memory 1

AT+CMGR=1

+CMGR: 0,,0

OK

pleas let us know if there is solution

EC25&EC21_AT_Commands_Manual 125 / 239 

Answer 1

Hello,

TRB142 does support these AT commands. Which device firmware version and modem firmware version you are using? I was able to send messages using these commands:

gsmctl -A AT+CMGR=1

gsmctl -A AT+CMGF=1

gsmctl -A AT+CMGS="+3706...."

Regards.

Comments

who in the the world is using ..... gsmctl -A ???  ....   we cannot use gsmctl -A  .... !!!!

does it work with pure AT+CMGR=1 

otherwiese it is not posible to use this modem for our Applications 

---

Hello,

It works with pure AT commands to if you are using serial connection and serial client.

Regards.

---

yes we are using a RS232 connection and a terminal program - the raction is:

AT+CMGR=1
OK

this ist wrong...

should be 

AT+CMGR=1
+CMGR: 0,,0
OK

is there a setting wrong?? 

---

Hello,

I could not reproduce your issue, have you tried using AT+CMGF=1 first to instruct the modem to operate in SMS text mode?

Regards.

---

yes in text mode

if SMS in memory1 the answer is ok:

AT+CMGR=1

+CMGR: "REC UNREAD","+4915012345678",,"14/07/09,19:06:47+08"

1234 OFF

OK

--> correct!

but if memory 1 is empty - the (AT+CMGD=1)

then for 

AT+CMGR=1

answer should be 

+CMGR: 0,,0

OK

the answer is a single - OK

--> not correct!

this is the problem if the +CMGR: 0,,0 is not in the answer we cannot use the Modem for our applications 

 (you can compare with all common modems -  Siemens modem TC35, BGS2T, .... ) 

--> pleas let us know if there is a solution