Siemens MC55 AT manual Gprs Commands, 11.1 AT+CGACT PDP context activate or deactivate, At+Cgact=?

11.GPRS Commands

This chapter describes AT Commands that a TE (Terminal Equipment, e.g. an application running on a control- ling PC) may use to control the MC55 acting as GPRS Mobile Termination (MT). Please use chapter "Using GPRS AT commands (Examples)" as a first guidance.

11.1AT+CGACT PDP context activate or deactivate

Syntax

Test Command

AT+CGACT=?

Response(s)

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

OK

Read Command

AT+CGACT?

Response(s)

+CGACT: <cid>, <state>

[+CGACT: <cid>, <state>]

...

OK

Write Command

AT+CGACT=[<state>[, <cid>[, <cid>]]]

Response(s)

OK ERROR +CME ERROR

Reference(s)

GSM 07.07

PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge  Last

% % % % % % ! ! !

Command Description

The test command is used for requesting information on the supported PDP context activation states. The read command returns the current activation states for all the defined PDP contexts.

The write command is used to activate or deactivate the specified PDP context(s). After the command has com- pleted, the MT remains in V.250 command state. If any PDP context is already in the requested state, the state for that context remains unchanged. If the MT is not GPRS attached when the activation form of the command is executed, the MT first performs a GPRS attach and then attempts to activate the specified contexts. If no <cid>s are specified the activation/deactivation form of the command activates/deactivates all defined contexts. If the MT is not able to activate a context because of a failed attach, the command returns "ERROR" or "+CME ERROR: unknown" after 385 seconds (timer T3310 expired).

If the MT is attached but is not able to activate a context for more than 160 seconds (timer T3380 expired), com- mand returns "ERROR" or "+CME ERROR: unspecified GPRS error. In this case AT+CEER returns "+CEER: 51,3,0".

The command should not be used to deactivate a PDP context during the implicit PDP context deactivation pro- cedure which is started automatically after LCP termination or by dropping the DTR line (if AT&D2 is configured). For details refer to Section 11.6.1, Automatic deactivation of PDP context during dial-up PPP.

MC55_ATC_V04.00	Page 266 of 475	3/17/06
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