访问
https://files.freeswitch.org/
安装运行环境
yum install -y subversion autoconf automake libtool gcc-c++ ncurses-devel make
安装 freeswitch-release-1-6.noarch.rpm
指南 https://freeswitch.org/confluence/display/FREESWITCH/CentOS+7+and+RHEL+7
yum install -y http://files.freeswitch.org/freeswitch-release-1-6.noarch.rpm epel-release
yum install -y freeswitch-config-vanilla freeswitch-lang-* freeswitch-sounds-*
systemctl enable freeswitch