Script description: the script executes following steps:

● script configuration (IP address, remote & local ports, APN, PIN, PUK, NET_Operator)

● check SIM status, insert SIM PIN or PUK when needed, and check for network registration - socket configuration and GPRS context activation

● client or server selection based on the input char received ('c' or 's' character to select one of the

● 2 options) o start client mode dialing the remote socket (skt1)

• start server mode configuring firewall and socket listen (skt2)

● when client to server connection is established, every character sent on the serial port of one module is received by the remote module

● suspend the socket with "+++" sequence

● since MDM-SER bridge is active it is possible to send AT commands (AT#SO=1 to reconnect the socket or AT#SH=1 to close the connection)

● the module is rebooted once DCD low status is detected

User inputs: edit these values in the script

-	NETWORK= "xxx"	# this is the MNO name
-	PIN = ""	# SIM card PIN
-	PUK = ""	# SIM card PUK
-	NEW_PIN = ""	# SIM card PIN
-	LOCAL_PORT = xxxxx	# Local server port
-	REMOTE_IP = "xxx.xxx.xxx.xxx"	# Remote server address
-	SUBNET_MASK = "255.0.0.0"
-	REMOTE_PORT = "xxxx"	# Remote server port
-	APN = "xxx.xxxxxxxx.xx"	# APN, ask your network provider the correct value

Availability: any Telit product supporting Python