Port number for MOH streaming

What is the proper statement format and port number to send a MOH stream to FreePBX?
I have the following statement in the system now.
"/usr/bin/mpg123 -q -s --mono -r 8000 -f 8192 -b 1024 http : / /10 .1 .3 .250 :3030"

I am trying to use port 3030, but it does not work. Is there an assigned port that must be used?

WireShark shows me that the port 3030 is unreachable.