Checking Network Registration; Sending And Receiving Data; Connecting Device To Tcp Server As Tcp Client; Configuring Device As Udp Listener To Accept Udp Client Connections - Multitech MultiConnect Cell MTC-H5 User Manual

Checking Network Registration

Before establishing a packet data connection, verify the is device registered on the network. To do this enter the
network registration report read command:
AT+CREG?
If the device returns:
+CREG: 0,1
The device is registered.
If the device returns:
+CREG: 0,2
The device is in a network searching state.

Sending and Receiving Data

Connecting Device to TCP Server as TCP Client

1. Bring up Data Connection Using Internal IP stack
Enter:
AT#SGACT=1,1
The device responds with the IP Address the cellular provider assigned to the device on connection,
followed by OK. For example:
#SGACT: 25.194.185.116
OK
2. Create Client Connection to TCP Server on Port 500
Enter:
AT#SD=1,0,500,"###.##.###.##" where ###.##.###.## is the TCP server IP Address.
The device responds with OK. You can now send or receive data without entering additional commands.
Closing the Socket and the Connection
To close the socket:
■ Enter the escape sequence:+++
■ To close Socket 1, enter: AT#SH=1
The device responds with OK.
To close the data connection:
■ Enter: 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:
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MultiConnect Cell MTC-H5 User Guide
CONFIGURING AND COMMUNICATING WITH YOUR DEVICE
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