Multi-Tech Systems GPRS (MTMMC-G) Benutzerhandbuch

Chapter 15 – GPRS Commands  

Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 

161 

 

Description: 

The set command controls the presentation of an unsolicited result code +CGREG: <stat> when <n>=1 
and there is a change in the modem's GPRS network registration status, or code +CGREG: 
<stat>[,<lac>,<ci>] when <n>=2 and there is a change of the network cell. 

 

The read command returns the status of result code presentation and an integer <stat> which shows 
whether the network has currently indicated the registration of the modem. Location information 
elements <lac> and <ci> are returned only when <n>=2 and modem is registered in the network. 

0 

Disable network registration unsolicited result code 

1 

Enable network registration unsolicited result code +CGREG: <stat> 

2   Enable network registration and location information unsolicited result code +CGREG: 

<stat>[,<lac>,<ci>] 

<stat> 

0 

Not registered; the modem is not currently searching a new operator to which to register 

1 

Registered, home network 

2 

Not registered, but modem is currently searching a new operator to which to register 

3 Registration 

denied 

4 Unknown 
5 Registered, 

roaming 

<lac> 

String type; two byte location area code in hexadecimal format 

<ci> 

String type; two byte cell ID in hexadecimal format 

AT+CGREG 

AT+CGREG=[<n>] 

 +CGREG: stat>[,<lac>,<ci>] 
OK 

AT+CGREG? +CGREG: 

<n>,<stat>[,<lac>,<ci>] 

OK 
Note: +CME ERROR: <err> 

AT+CGREG=? 

+CGREG: (list of supported <n>s) 
OK