Well, this is just some tips for you to understand your phone better by issuing AT commands to retrieve information from your mobile phone and SIM.
First you need to set up your phone as modem. Take note of the port number as you need to connect to it using HyperTerminal later.
Next, use HyperTerminal to connect to the port, as shown below.
Now we can start to issue AT commands to your phone.
Some of the common AT commands
AT+CGMM – Request Phone Model
AT+CGMM Nokia 6233 OK
ATI2 – Revision Information
ATI2 V 05.10 21-12-06 RM-145 (c) Nokia OK
AT+CGSN – Request IMEI
AT+CGSN 356283012529758 OK
AT+CIMI – Request IMSI
AT+CIMI 502193900249403 OK
AT+CMFG – Check if text or PDU SMS message are supported
AT+CMGF=? +CMGF: (0,1) OK
0 = PDU mode supported
1 = Text mode supported
AT+CBC – Check Battery Level
AT+CBC +CBC: 0,7 OK
AT+COPS – Request Network Location
AT+COPS? +COPS: 0,2,"50219" OK
AT+CSQ – Check Signal Quality
AT+CSQ +CSQ: 16,99 OK AT+CSQ=? +CSQ: (0-31,99),(99) OK
AT+CSCA – Request Service Centre Address
AT+CSCA? +CSCA: "+60193900000",145 OK
AT+CMGL – List SMS Messages
Not supported in my phone :(
ATD – Make a Phone Call
ATD0123333 NO CARRIER
Many more.. to be continued.. 🙂
Note: All these are very basic things that you may already know. You can easily find all these information over the Internet.