AT Command Set

6.1.2 AT+CGACT PDP context activate or deactivate

Test command

AT+CGACT=?

The test command is used for requesting information on the supported PDP context activation states.

Response

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

OK/ERROR/+CME ERROR

Parameter

 

<state>

See write command

Read command

AT+CGACT?

The read command returns the current activation states for all the defined PDP contexts.

Response

+CGACT: <cid>, <state> [<CR><LF>+CGACT: <cid>, <state>...]

OK/ERROR/+CME ERROR

Parameter

 

<cid>

See write command

<state>

See write command

Write command

AT+CGACT=

[<state>[,<cid>[,<cid> [,...]]]]

This command is used to activate or deactivate the specified PDP con- text(s). After the command has completed, the MT remains in V.25ter com- mand 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 them attempts to activate the specified contexts. If no <cid>s are specified the activation/deactivation form of the command acti- vates/deactivates all defined contexts.

Response

OK/ERROR/+CME ERROR

Parameter

 

<state>

indicates the state of PDP context activation

 

0 – deactivated

 

1 – activated

<cid>

PDP Context Identifier is a numeric parameter which

 

specifies a particular PDP context definition. The pa-

 

rameter is local to the TE-MT interface and is used in

 

other PDP context-related commands.

 

Note: The range of supported cids is returned by

 

AT+CGDCONT=?

Response

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

OK/ERROR/+CME ERROR

Reference

Note

GSM 07.07

Please note that the execution of ATH deactivates any PDP context (see

 

Chapters 2.12, 4.16, 6.3.2)

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MC35 specifications

The Siemens MC35 is a compact and versatile modem designed primarily for mobile communication, data transmission, and machine-to-machine (M2M) applications. Launched in the early 2000s, it quickly became popular due to its blend of performance, reliability, and ease of integration, making it a solid choice for developers and businesses.

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Power consumption is another notable characteristic of the Siemens MC35. It is engineered to be energy-efficient, which is especially important for battery-operated devices or systems that require a prolonged operation without frequent recharging or maintenance.

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To summarize, the Siemens MC35 stands out as a reliable modem with a rich feature set that includes GSM and GPRS support, SMS and voice capabilities, easy integration through various interface options, and energy-efficient operation. Its adaptability makes it a valuable tool for a wide array of communication and data transmission tasks, solidifying its place in the evolution of mobile communications technology.
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