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AT Command untuk GSM Modem

Enter PIN
AT+CPIN=”[pin]”

Enter PUK
AT+CPIN=”[puk]”,”[new pin]”

PIN state
AT+CPIN?

Register network
AT+CREG?
(“0,1” means logged in and “0,2” means logged out)

Show network
AT+COPS?

Show signal strength
AT+CSQ?
(somewhere between 0 and 31.99)

Data call
ATD912555666

Voice call
ATD912555666;

Enter SMS center
AT+CSCA=”+351912333444″

Set to text mode and send SMS
AT+CMGF=1
AT+CMGS=”+351912555666″
Please call office^Z

Preferred message service
AT+CPMS?
(+CPMS: [mem1],[used1],[total1],[mem2],[used2],[total2],…)

Select SIM card messages
AT+CPMS=”SM”,”SM”,”SM”

Select memory messages
AT+CPMS=”ME”,”ME”,”ME”

Read SMS on memory number n
AT+CMGR=[n]

Delete SMS on memory number n
AT+CMGD=[n]

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