register on freeswitch.org for a user account

get subversion

download the svn trunk
# svn co http://svn.freeswitch.org/svn/freeswitch/trunk freeswitch --username tainted

make sure you have wget and gmake in path
# which wget
# which gmake

go into your freeswitch directory
# cd freeswitch

configure it
# ./configure

copy the modules file
# cp modules.conf.in modules.conf

edit modules.conf to your needs - recommend leaving as default

make it
# make installall

FREESWITCH INSTALLATION INSTRUCTIONS

add the path to your ld.so.conf
# vi /etc/ld.conf

add the line
# /usr/local/freeswitch/lib

run ldconfig
# ldconfig

by default freeswitch installs to /usr/local/freeswitch

to run freeswitch
# /usr/local/freeswitch/bin/freeswitch

freeswitch configuration located at
# /usr/local/freeswitch/conf/freeswitch.conf