mod_event_socket is a tcp based interface to control freeswitch.  
the default values are to bind to 127.0.0.1 port 8021  The defualt password is ClueCon
all these settings can be easily changed in the freeswitch.xml config file:

    <configuration name="event_socket.conf" description="Socket Client">
      <settings>
        <param name="listen-ip" value="127.0.0.1"/>
        <param name="listen-port" value="8021"/>
        <param name="password" value="ClueCon"/>
      </settings>
    </configuration>

To use manuall
telnet to port 8021
enter "auth ClueCon" to authenticate

from here you can do the following:
event [xml|plain] <list of events to log or all for all>
		- enable or disable events by class or all (plain or xml output format)
noevents
		- disable all events that were previously enabled w/ event
nixevent <some_event>
		- command to allow 'events all' followed by 'nixevent <some_event>' to do all but 1 type scenerio
log <level> 
		- Enable log output.  Levels same as the console.conf values
nolog
		- Disable log output previously enabled by the log command
api <command> <arg>
		- send an api command (blocking mode)
bgapi <command> <arg>
		- send an api command (non-blocking mode) this will let you execute a job in 
		  the bg and the result will be sent as an event with an indicated uuid to match the reply to the command)
exit
		- close the socket connection
sendevent	<event-name>
		- send an event into the event system (multi line input for headers)
sendmsg	<uuid>
		- send a message to the call of given uuid (call-command execute or hangup), see examples below

SendMsg <uuid>
call-command: execute
execute-app-name: playback
execute-app-arg: /tmp/test.wav

SendMsg <uuid>
call-command: hangup
hangup-cause: normal_clearing


you must follow these one line commands with 2 returns.

valid input:

-------------------------
<command>[ <args>]

-------------------------
or
-------------------------
<command>[ <args>]
Header1: Val
HeaderN: Val

-------------------------

In order to control calls using send message, the calls should be sent to the mod_park application, which just leaves the channel sitting
in limbo, allowing you to execute applications on the channel as described above in the SendMsg example.

originate a call directly to park by making an ext the ext part of the originate command &park()

API command reference, partial list

originate <call url> <exten> [<dialplan>] [<context>] [<cid_name>] [<cid_num>] [<timeout_sec>]

killchan <uuid>

reloadxml

load <mod_name>

transfer <uuid> <dest-exten> [<dialplan>] [<context>]

pause <uuid> <on|off>

show [<blank>|codec|application|api|dialplan|file|timer|calls|channels]

status

uuid_bridge <uuid> <other_uuid>

fsctl [hupall|pause|resume|shutdown]

conference commands
conference list [delim <string>]
conference <confname> list [delim <string>]
conference <confname> energy <member_id> [<newval>]
conference <confname> volume_in <member_id> [<newval>]
conference <confname> volume_out <member_id> [<newval>]
conference <confname> play <file_path> [<member_id>]
conference <confname> say <text>
conference <confname> saymember <member_id><text>
conference <confname> stop <[current|all]> [<member_id>]
conference <confname> kick <member_id>
conference <confname> mute <member_id>
conference <confname> unmute <member_id>
conference <confname> deaf <member_id>
conference <confname> undef <member_id>
conference <confname> relate <member_id> <other_member_id> [nospeak|nohear]
conference <confname> lock
conference <confname> unlock
conference <confname> dial <endpoint_module_name>/<destination>
conference <confname> transfer <member_id> <conference_name>