在Ubantu上安装FreePBX16&Asterisk20注：必须以Root用户身份安装更新系统apt-getupdate&&apt-getupgrade-y安装SURY存储库签名密钥echo"debhttps://packages.sury.org/php/$(lsb_release-sc)main"|sudotee/etc/apt/sources.list.d/php7.x.listap