An "inbound" event socket connection means that an external script or program is connecting to a FreeSWITCH server. The connection is inbound from the server's point of view. In fact, every time you run the
fs_cli utility you are making an inbound event socket connection.
Be sure that you have installed ESL for your preferred programming language. (See the previous recipe, Setting up the event socket library.) From there you will just need a text editor, command-line access, and a phone registered to your system. The examples presented here are in Perl, however the accompanying code samples have corresponding examples in Python as well.