sprawdzenie operatora
AT+COPS?
+COPS: 0,0,"06"
//mode: choose network automatically,ignoring parameter <format><oper>
//format: long format alpha <oper>,up to 16 character
//oper
stan zalogowania do sieci gsm zwykla/roamin
AT+CREG?
+CREG: 0,1 //mode: Forbid network registration to provide result code(default setting);
//Status: Registered to local network;
stan karty sim
AT*TSIMINS?
*TSIMINS: 0,1 - tzn jest karta
sms z karty
AT+CMGF=1 //Text mode
OK
AT+CMGR=1 /view received messages
+CMGR: "REC READ","100",,"11/10/18,11:59:36+08"
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OK