AT+QIOPEN=1,1,"UDP","udp.os.1nce.com",4445

OK

+QIOPEN: 1,0
AT+QISEND=1,17

> Welcome to 1NCEOS
SEND OK
AT+QICLOSE=1

OK

Preparation

Configure the EC25/EC21 module with the appropriate network settings, such as the APN and operator ID, and ensure that it is connected to the cellular network.

Open socket

Use the AT+QIOPEN command to open a UDP socket and establish a connection with the remote server.

Send the message to 1NCEOS

For Send After receiving ">", input data (TEST), the maximum length of the data is 1460, the data beyond 1460 will be omitted. Then use <CTRL+Z> to send data. When receive SEND OK means the data has been sent, or you can specify number of Byte you want to send

Close the Socket

AT+QICLOSE command is used to close a socket connection established with a remote server using a TCP or UDP protocol. The command requires specifying the socket ID that was assigned when the connection was opened.