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sim900 module udp connection

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sk97

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Hi,
I have a question about UDP conncetion in multiple connection mode when sim900 is in server mode.
There is an example how to send data using UDP protocol to remote server in document SIMCom TCPIP Application Note document.
However there is no command used which would set port number for this connection on sim900 device.
To what port should server send data so as sim900 would be able to receive it? Does this connection use port which was specified when starting TCP server using AT+CIPSERVER?

Please, give my any advice.
Lukas
 

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