User's Manual Part 1

AT Commands 89
P/N 90023363 Revision 1.8
AT+CGATT
Description: GPRS ATTACHED OR DEATTACHED
This execution command is used to attach to, or detach the MT from, the
GPRS service.
Syntax: AT+CGATT= [<state>]
Parameters: <state> indicates the GPRS attach state
0 – attached
1 – detached
Other values are reserved and will result in an ERROR response to the
execution command.
Response: +CGATT:<state>
Query AT+CGATT? OK
Test AT+CGATT=?
Set AT+CGATT=0
AT+CGCLASS
Description: GPRS MOBILE STATION CLASS
Class A and B are not supported by this GPRS solution. Class C is only
supported for <class> values of “CG” and “CC”
Syntax: AT+CGCLASS= [<class>]
Parameters: <class> a string parameter which indicates the GPRS mobile class (in
descending order of functionality)
A class A (highest)
Bclass B
CG class C in GPRS only mode
CC class C in circuit switched only mode (lowest)
Response: +CGCLASS: <class>
AT+CGDCONT
Description: PDP CONTEXT DEFINED
This set command specifies PDP context parameter values for a PDP
context identified by the (local) context identification parameter <cid>.
Define the PDP context and APN address.
Syntax: AT+CGDCONT=[<cid>[,<PDP_type>[,<APN>[,<PDP_addr>[,<d_comp>[,<h_co
mp>[,<pd1>[,…[,pdN]]]]]]]]]