Siemens MC35 6 GPRS AT commands in accordance with GSM 07.07

AT Command Set

MC35_ATC_01_V05.00 Page 159 of 256 15.07.2002

6 GPRS AT commands in accordance with GSM 07.07

This chapter provides GPRS specific AT commands. For information on us ing GPRS commands in

multiplex mode see chapter 4.28.

This clause defines commands that a TE (Terminal Equipment, i.e. an application running on a

controlling PC) may use to control a GPRS MT (Mobile Termination, the Wireless Module). Refer ro

Chapter 6.4 for selected examples of using GPRS AT commands.

Test command

AT+CGATT=?

The test command is used for requesting information on the supported GPRS

service states.

Response

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

OK/ERROR/+CME ERROR

Parameter

<state> See write command

Read command

AT+CGATT?

The read command returns the current GPRS service state.

Response

+CGACT: <state>

OK/ERROR/+CME ERROR

Parameter

<state> See write command

Write command

AT+CGATT=

[<state>]

The execution command enables the MT get attached to or det ached from the

GPRS service. After the command has completed, the MT rem ains in V.25ter

command state. If the MT is already in the requested state, the com mand is ig-

nored and the OK response is returned. Any active PDP contex ts will be auto-

matically deactivated when the attachment state changes to detached.

If the MT is not able to attach for more than 5 minutes, the command returns an

error code, though the MT is still trying to attach.

Parameter

<state> indicates the state of GPRS attachment

0 – detached

1 – attached

Response

OK/ERROR/+CME ERROR

Reference

GSM 07.07