Manual

Smart Machine Smart Decision
SIM800 Series_AT Command Manual_V1.09 208 2015-08-03
7 AT Commands for GPRS Support
7.1 Overview of AT Commands for GPRS Support
Command Description
AT+CGATT 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+CGEREP Control unsolicited GPRS event reporting
AT+CGREG Network registration status
AT+CGSMS 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)
OK
Test Command
AT+CGATT=?
Parameters
See Write Command
Response
+CGATT: <state>
OK
Read Command
AT+CGATT?
Parameters
See Write Command
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CGATT=<st
ate>
Parameters
<state> Indicates the state of GPRS attachment