Multitech MultiConnect Cell 100 series - UDP Listener Configuration; Setup and Connection Steps; Exit Data Mode

CONFIGURING AND COMMUNICATING WITH YOUR DEVICE
20 MultiConnect
®
Cell MTC-MNK1 User Guide
AT#SGACT=1,0
The device responds with OK.
Configuring Device as UDP Listener to Accept UDP Client Connections
To configure the device as a UDP client:
1. Check signal strength.
Enter:
AT+CSQ
2. Verify device is registered on the cellular network.
Enter:
Should return:
+CEREG: 0,1 or +CEREG: 0,5
OK
3. Configure socket parameters
Enter:
AT#SCFG=1,3,300,240,600,50
4. Activate context one
Enter:
Verizon:
AT#SGACT=3,1
Other Networks:
AT#SGACT=1,1
5. Set firewall rule to accept connections:
AT#FRWL=1,"###.##.###.#","###.##.###.#"
where ###.##.###.# represents the IP range. For example:
AT#FRWL=1,"204.26.122.1","204.26.122.255"
6. Set connection ID 1 for UDP listening mode on port 7000.
Enter:
AT#SLUDP=1,1,7000
The device responds with and unsolicited indication that a host is trying to connect to connection ID 1 on
port 7000.
SRING: 1
7. Accept incoming connection ID 1
Enter:
AT#SA=1
The device indicates a client successfully established a listener connection.
CONNECT
The device can send and receive data now.
Exit Data Mode and Close Connection
To exit data mode and close the socket:
1. Enter the escape sequence: