wget -O - https://files.freeswitch.org/repo/deb/freeswitch-1.8/fsstretch-archive-keyring.asc | apt-key add -
echo "deb http://files.freeswitch.org/repo/deb/freeswitch-1.8/ stretch main" > /etc/apt/sources.list.d/freeswitch.list
echo "deb-src http://files.freeswitch.org/repo/deb/freeswitch-1.8/ stretch main" >> /etc/apt/sources.list.d/freeswitch.list
apr apr-util curl dingaling freetdm v8 howl iksemel libfreeradius-client npm git-core build-essential autoconf automake libtool libncurses5 libncurses5-dev make libjpeg-dev pkg-config unixodbc unixodbc-dev zlib1g-dev