Telit Wireless Solutions Easy GPRS - Manual (Page 9)

Easy GPRS User Guide
80000ST10028 Rev. 1 - 14/03/07
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 9 of 37
1.2 Preliminary GPRS context parameters setting
1.2.1 Context parameter setting
The context parameters are all the set of information to identify the internet entry point interface
provided by the ISP. With these parameters the GPRS network identifies the ISP to be used to gain
access to the internet and defines the value of the IP address of the GPRS device once connected.
•
send command
AT+CGDCONT[=[[,[,[,[,[,[,1>[,…[,pdN]]]]]]]]]]
where:
- (PDP Context Identifier) numeric parameter which specifies a particular PDP context
definition.
1..max - where the value of max is returned by the Test command
- (Packet Data Protocol type) a string parameter which specifies the type of packet data
protocol
"IP" - Internet Protocol
"PPP" - Point to Point Protocol
- (Access Point Name) a string parameter that represents logical name used to select GGSN
or external packet data network. If the value is null or omitted, then the subscription value will
be requested.
- a string parameter that identifies the terminal in the address space applicable to the
PDP. The allocated address may be read using the +CGPADDR command.
- numeric parameter that controls PDP data compression
0 - off (default if value is omitted)
1 - on
- numeric parameter that controls PDP header compression
0 - off (default if value is omitted)
1 - on
, …, - zero to N string parameters whose meanings are specific to the
NOTE: a special form of the Set command, +CGDCONT=, causes the values for context
number to become undefined.
NOTE: issuing AT+CGDCONT is the same as issuing the Read command.
NOTE: issuing AT+CGDCONT= returns the OK result code.