Easy GPRS User Guide
80000ST10028 Rev. 0 - 02/01/07
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+OK Password required
PASS telit<cr><lf>
+OK 1 messages
LIST\r\n
+OK
1 19550
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RETR 1<cr><lf>
+OK 19550 bytes
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QUIT<cr><lf>
+OK POP3 server closing connection
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NO CARRIER
2.3.4 Remote connection between two modules
Configuration for the module that receives data (server):
Define PDP Context AT+CGDCONT=1,”IP”,”ibox.tim.it”,”0.0.0.0”
GPRS Context Activation AT#GPRS=1
Firewall Setup(if requiered) AT#FRWL=1,”198.158.1.1”,”0.0.0.0”
Socket Listen AT#SKTL=1,0,1024,255
First you have to define PDP context filling in the information of APN in this example: ibox.tim.it.
Next step is activation of GPRS context which gives as reply the IP of the module assigned by
network:
AT#GPRS=1
+IP: 217.201.142.223
OK
Before opening socket in listen it is possible to define an accept firewall chain in order to filter IP of the
senders.
At the end with AT commad AT#SKTL=1,0,1024,255 the socket will be set in listen on the port #1024.
Configuration for the module that opens connection (client):