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7 AT Commands for GPRS Support

7.1 Overview of AT Commands for GPRS Support

Command Description

AT+ CG ATT ATTACH OR DETACH FROM GPRS SERVICE

AT+CGDCONT DEFINE PDP CONTEXT

AT+CGQMIN QUALITY OF SERVICE PROFILE (MINIMUM ACCEPTABLE)

AT+CGQREQ QUALITY OF SERVICE PROFILE (REQUESTED)

AT+CGACT PDP CONTEXT ACTIVATE OR DEACTIVATE

AT+CGDATA ENTER DATA STATE

AT+CGPADDR SHOW PDP ADDRESS

AT+CGCLASS GPRS MOBILE STATION CLASS

AT+ CG ERE P CONTROL UNSOLICITED GPRS EVENT REPORTING

AT+ CG REG NETWORK REGISTRATION STATUS

AT+ CG SM S SELECT SERVICE FOR MO SMS MESSAGES

7.2 Detailed Descriptions of AT Commands for GPRS Support

7.2.1 AT+CGATT Attach or Detach from GPRS Service

AT+CGATT Attach or Detach from GPRS Service

Response

+CGATT: (list of supported <state>s)

Test Command

AT+CGATT=?

Parameter

See Write Command

Response

+CGATT: <state>

Read Command

AT+CGATT?

Parameter

See Write Command

Write Command

AT+CGATT=<st

ate>

Response

If error is related to ME functionality:

+CME ERROR: <err>

SIM300_ATC_V1.03 1 08.29.2008

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Elec Freaks Bluetooth Modem Specifiche Pagina 156