BC950K-GL Send and receive an sms message

IoT Modules LPWA Module
1

We need to send and receive SMS messages with the BC950K-GL module. Is there an example of this?

After the reboot of the module, we got the following output:

RDY                                                                                                                                                          
+CFUN: 1                                                                        
+CPIN: READY                                                                    
+CEREG: 2                                                                       
+CSCON: 1                                                                       
+IP: 10.90.245.13                                                               
+CEREG: 5,"A783","03260265",9                                                   
+CSCON: 0

Some infos over the sms configuration:

at+cmgf?                                                                        
+CMGF: 1
at+csca?                                                                        
+CSCA: "+35677794022",145

If I try to send an sms with the AT+CMGS command, I got only the result “ERROR” after I pressed Ctrl+Z.

Best regards,
Martin

2

Some additional info to the module:

ati
Quectel_Ltd
Quectel_BC950K-GL
Revision: BC950KGLAAR01A01
3

No +CME ERROR: with an error number returned as well?

4

I get the error code 332 (Network timeout).

5

What I have done:

I checked the message format. (text mode)

at+cmgf?
+CMGF: 1

at+cmgs="+49xxxxxxxxxxx"
> Test
+CMS ERROR: 332

I think the problem is that the module is not online (the module is the idle mode)

at+cscon?
+CSCON: 1,0

But how can I tell the module to wake up for the process of the sms sending?

Best regards,
Martin

6

SMS should work fine in idle mode. Any connection made for SMS is independent of any normal data connection.

Unfortunately, 3GPP 27.007 doesn’t give a decode for error 332.