User's Manual

Chapter 2: Activating the Modem
26 BlueTree Wireless M2M Express Product Manual V1.5
AT+CREG?
+CREG: 0,1
OK
Checks that the modem is registered on
the network. A response of +CREG: 1,1
indicates that the modem is registered
with the network.
AT+FCLASS=0
OK
Puts in data mode
AT+CGDCONT=1,"IP","apn","0.0.0.0",0,0
OK
Establishes the PDP context. Note that
there are no spaces in the string.
AT+CGQREQ=1,0,0,0,0,0
OK
Requested quality of service profile
AT+CGQMIN=1,0,0,0,0,0
OK
Minimum quality of service profile
AT+WGPRS=0,0
OK
Sets modems for automatic attachment.
For Wavecom 2426 modules only.
AT+CGACT=1,1
OK
Activates PDP context
AT+CGATT?
+CGATT: 1
OK
Verifies that the modem is GPRS
attached. If the +CGATT: value is not 1,
type AT+CGATT=1 and wait for the
connection to be established.
AT+CSQ?
+CSQ: <rssi>,<fer>
OK
Checks the signal strength.
The RSSI value range is from 0 (lowest)
to 31 (highest).
A value of 10 or higher indicates a usable
signal. If the value is lower than 10, move
the antenna or the modem to a location
where you know the signal quality is
strong.
An RSSI value of 99 indicates no signal.
Command Function