yum install -y http://files.freeswitch.org/freeswitch-release-1-6.noarch.rpm epel-release
yum install -y git gcc-c++ autoconf automake libtool wget python ncurses-devel zlib-devel libjpeg-devel openssl-devel e2fsprogs-devel sqlite-devel libcurl-devel pcre-devel speex-devel ldns-devel libedit-devel libxml2-devel libyuv-devel opus-devel libvpx-devel libvpx2* libdb4* libidn-devel unbound-devel libuuid-devel lua-devel libsndfile-devel yasm-devel
cd /usr/local/src/
git clone -b v1.6 https://freeswitch.org/stash/scm/fs/freeswitch.git
cd freeswitch/
./bootstrap.sh -j
./configure
make && make install
出现 libopus 错误
解决方法
yum localinstall http://pkgrepo.linuxtech.net/el6/release/x86_64/libopus-devel-1.1-1.el6.x86_64.rpm http://pkgrepo.linuxtech.net/el6/release/x86_64/libopus-1.1-1.el6.x86_64.rpm
最后终于安装成功