Trying to find location in GSM network
AT+CSCB is to "Select Cell Broadcast SMS Messages" - not to get a location: (datasheet, p. 70)



What you can try is explained here. First send the Test Command, AT+CSCB=?. You should get a response with a list of supported modes. Then you can try the Read Command, AT+CSCB? and you should get the current mode  and so. At last you can try a Write Command, AT+CSCB=&lt;mode&gt; with &lt;mode&gt; one of the modes listed in the response to the Test Command. You can verify this change with the Read Command AT+CSCB?.

When you do want a location, try what PeterJ says in the comments on the question: send a AT+CENG=2. This sets the engineering mode (whatever that may be) and replies with all kinds of network information. Refer to the datasheet for an exact list, but it would include:


  &lt; mcc > : mobile country code
  &lt; mnc > : mobile network code
  &lt; bsic > : base station identification code
  &lt; lac > : location area code


With the bsic, you can use this to find your location. Other return variables may be useful as well.