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AC75_ATC_V01.002

Page 308 of 569

10/30/06

Confidential / Released

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 AC75 acting as GPRS Mobile Termination (MT). Please use chapter "

" as a first guidance. 

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

s are specified the activation/deactivation form of the command activates/deactivates all defined contexts. 

Indicates the state of PDP context activation.
0

deactivated

[1]

activated

Test Command

AT+CGACT=?

Response(s)

+CGACT: 

(list of supported 

OK

Read Command

AT+CGACT?

Response(s)

[+CGACT: 

]

...
OK

Write Command

AT+CGACT=

[

[, 

]]]

Response(s)

OK

ERROR

+CME ERROR

Reference(s)

PIN

ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge

4

Last

GSM 07.07

<state>

(num)