C55/C55i AT COMMAND SET Description Preliminary - Falcom

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C55/C55I AT COMMAND SET VERSION 1.00 9 GPRS Commands This chapter describes AT commands that a TE (Terminal Equipment, e.g. an application running on a controlling PC) may use to control the C55 acting as GPRS Mobile Termination (MT). Please use chapter "Using GPRS AT commands (Examples)" as a first guidance. 9.1 AT+CGACT PDP context activate or deactivate Syntax Test Command Response(s) AT+CGACT=? +CGACT: (list of supported s) OK Read Command Response(s) AT+CGACT? + CGACT: , [+CGACT: , ] OK Write Command Response(s) AT+CGACT=[[, [, [,... OK ]]]] ERROR +CME ERROR Reference(s) PIN ASC0 GSM 07.07 ● ● 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 completed, the MT remains in V.25ter 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 them attempts to activate the specified contexts. If no 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, command returns with "ERROR" or with "+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), command returns with "ERROR" or with "+CME ERROR: unspecified GPRS error. In this case AT+CEER returns "+CEER:51,3,0". This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission. Page 168
C55/C55I AT COMMAND SET VERSION 1.00 Parameter Description (num) Indicates the state of PDP context activation. 0 detached [1] attached (num) PDP Context Identifier is a numeric parameter which specifies a particular PDP context definition. The parameter is local to the TE- MT interface and is used in other PDP context-related commands. 1...2 Notes • ATH will deactivate any PDP context. • If the MT is in dedicated mode, write command returns with "+CME ERROR: operation temporary not allowed. • A maximum of 2 contexts can be activated at the same time, no matter on which interface. Trying to activate more than 2 contexts will cause "+CME ERROR: operation temporary not allowed. Note that, depending on the provider, the number of activated contexts may be further restricted. In such cases "+CME ERROR: unspecified GPRS error" will be returned and AT+CEER returns "+CEER: 50,26,0". Remember that contexts may be activated implicitly by using the ATD*98# or ATD*99# GPRS compatibility commands without specifying a . 9.2 AT+CGANS Manual response to a network request for PDP context activation Syntax Test Command AT+CGANS=? Write Command AT+ CGANS=[[, [, ]]] Reference(s) PIN ASC0 GSM 07.07 ● ● Response(s) +CGANS: (list of supported s), (list of supported s) OK Response(s) OK ERROR +CME ERROR Command Description The write command requests the MT to respond to a network request for GPRS PDP context activation which has been signaled to the TE by the RING or CRING unsolicited result code. The parameter allows the TE to accept or reject the request. This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission. Page 169
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C55/C55i AT COMMAND SET Description Preliminary - Falcom

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