Siemens MC55 manual 10.3 AT+CGATT Gprs attach or detach, At+Cgatt=?, At+Cgatt?, +CGATT state

MC55 AT Command Set

10.3 AT+CGATT

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10.3AT+CGATT GPRS attach or detach

Syntax

Test Command

AT+CGATT=?

Response(s)

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

OK

Read Command

AT+CGATT?

Response(s)

+CGATT: <state>

OK

Write Command

AT+CGATT=[<state>]

Response(s)

OK ERROR +CME ERROR

PIN ASC0 ASC1 MUX1 MUX2 MUX3

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Reference(s)

GSM 07.07

Command Description

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

The read command returns the current GPRS service state.

The write command is used to attach the MT to, or detach the MT from the GPRS service. After the command has completed, the MT remains in V.25ter command state. If the MT is already in the requested state, the com- mand is ignored and the OK response is returned. Any active PDP contexts will be automatically deactivated when the attachment state changes to detached.

If the MT is not able to attach for more than 5 minutes, command returns with "ERROR" or "+CME ERROR: unknown", but MT is still trying to attach.

If the MT is not able to detach for more than 1 minute, command returns with "ERROR" or "+CME ERROR: unknown", but MT is still trying to detach. If an attach is issued during a running detach, command returns with "ERROR" or "+CME ERROR: unspecified GPRS error".

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