INSYS GSM small 2.0
AT Command Reference
Command
Description
AT+CGACT=[<stat
e>[,<cid>[,<cid
>[,...]]]]
Enable/disable PDP context
<state>
0
PDP context indicated with
<cid>
disabled (default)
1
PDP context indicated with
<cid>
enabled
<cid>
Index of a PDP context (refer to
AT+CGDCONT
) to be enabled /
disabled
AT+CGDATA=[<L2P
>[,<cid>[,<cid>
[,...]]]]
Starting a GPRS connection
<L2P>
Layer 2 Protocol between application and GPRS engine
1
PPP
<cid>
Index of a defined PDP context (refer to
AT+CGDCONT
) to be
enabled / disabled
If the command is executed successfully, the message
"CONNECT"
indi-
cates that data mode is enabled with the control line DCD.
The command
ATD
allows to perform a modem-compatible GPRS connec-
tion establishment as well.
AT+CGDCONT?
Reading out the PDP context
AT+CGDCONT=[<ci
d>[,<PDP_type>[
,<APN>[,<PDP_ad
dr>]]]]
Defining the PDP context
<cid>
Index, which identifies the respective PDP context
1
PDP
context
1
2
PDP
context
2
<PDP_type>
Protocol type of the packet transmission
IP
Internet
protocol
<APN>
Access Point Name as string. Must be in quotation marks.
<PDP_addr>
String that indicates the address for identifying the GPRS
terminal device in the address space (IP V4 address for
PDP_type IP). If not entered, the application can enter it
during the PDP start procedure or a dynamic IP address is
requested.
The commands
AT&F
or
ATZ
will set disabled contexts to undefined.
The setting is not stored with
AT&W
.
AT+CGQMIN?
Displaying the Quality of Service profile (minimum acceptable)
AT+CGQMIN=[<cid
>[,<precedence>
[,<delay>[,<rel
iabil-
ity>[,<peak>[,<
mean>]]]]]]
Defining the Quality of Service profile (minimum acceptable)
Only if this QoS profile of the terminal device is at least supported by the
provider, the GPRS connection will be established.
<cid>
Index of a defined PDP context (refer to
AT+CGDCONT
), for
which this minimum profile is to be valid.
<precedence>
Priority class
0
Network subscribed value (default)
1
High priority;
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