Specifications

Chapter 11 – GPRS Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 213
If the CID is already active, the mobile responds OK at once.
If no CID and no STATE is given, all defined CIDs will be activated by:
AT+CGACT=
OK
If no CID is defined the mobile responds +CME ERROR: invalid index.
Remark: If the mobile is NOT attached by AT+CGATT=1 before activating, the attach is automatically done by
the AT+CGACT command.
After defining and activating a CID it may be used to get online by:
AT+CGDATA=”PPP”,1
CONNECT The mobile is connected using the parameters of CID 1.
AT+CGDATA=
CONNECT The mobile is connected using default parameters (<L2P>=”PPP” and <cid> as
described for command AT+CGDATA).
The mobile supports Layer 2 Protocol (L2P) PPP only.
Remark: If the mobile is NOT attached by AT+CGATT=1 and the CID is NOT activated before connecting,
attaching and activating is automatically done by the AT+CGDATA command.
11.23 Using the GPRS Dial Command ATD Example
In addition to the GPRS AT commands you can use the “D” command to dial into to the GPRS network.
There are two GPRS Service Codes for the ATD command: Values 98 and 99.
Examples:
ATD*99#
CONNECT ‘ Establish a connection by service code 99.
ATD*99*123.124.125.126*PPP*1#
CONNECT Establish a connection by service code 99, IP address 123 and L2P =
PPP and using CID 1.
The CID has to be defined by AT+CGDCONT.
ATD*99**PPP#
CONNECT Establish a connection by service code 99 and L2P = PPP.
ATD*99***1#
CONNECT Establish a connection by service code 99 and using CID 1.
ATD*99**PPP*1#
CONNECT Establish a connection by service code 99 and L2P = PPP and using
CID 1. The CID has to be defined by AT+CGDCONT.
ATD*98#
CONNECT Establish a connection by service code 98.
ATD*98*1#
CONNECT Establish an IP connection by service code 98 using CID 1. The CID
has to be defined by AT+CGDCONT.