Technical information

Appendix D: Use Cases
May 31, 2008 AT+i Commands Reference Manual D-3
This minimal configuration shall be performed only once. Since all W24 parameters are
non-volatile, these settings shall remain intact indefinitely or until a "Factory Defaults" AT+i
command is issued.
Once these settings have been configured the W24 can go online through the G24 GPRS
connection. This can be verified then by following this command sequence:
Command Response Comment
AT+iCPF=0 I/OK The W24 is switched to the
GSM/GPRS communication platform.
Command Response Comment
AT+iMTYP=2 I/OK Set the Modem Type to 2 (GPRS).
AT+iXRC=0 I/OK Set "Blind Dialing" mode, since GPRS
modems do not respond with a dial
tone.
AT+iISP1=*99# I/OK Set the GPRS IP connection dial string.
AT+iMIS="AT+cgdcont=1,
\"IP\",\"INTERNET\"
I/OK Define the Modem Initialization string.
This is sent to the G24 before starting
an Internet session. It sets the correct
APN.
Command Response Comment
AT+iIPA? 0.0.0.0
I/OK
When the W24 is not yet online its IP is
0.0.0.0.
or AT+iUP I/OK
I/ONLINE
This command W24 to go online using
the selected communication platform.
The I/ONLINE response signals that
W24 is on the Internet.
or AT+iSTRR I/OK
I/ONLINE
This command W24 to go online using
the Gateway/Router mode for
switching communication platforms
seamlessly. I/ONLINE response signals
that W24 is on the Internet.
AT+iIPA? 10.170.5.34
I/OK
Now that the W24 is online, it has an
assigned IP addres.