I used to have a working FreeFBX 13 Distro Hosted in a VM OpenVZ with Centos6
After getting bored to recover backups of my hosted VM PBX I finally decided to migrate to Issabel Distro
I did ask to my Hosting Company to change my corrupted and hacked FreePBX to a Clean Install of Centos7
before doing that I just download my newest working backup made with FreePBX from the server made with freepbx GU backup feature
after that I login into ussing SSH to my new Clean Centos 7 Hosted Server
then I just download the netinstall script
wget -O - https://astuteinternet.dl.sourceforge.net/project/issabelpbx/Issabel%204/issabel-netinstall-beta.sh | bash
after following the step by step installation
the only problem I had was that coud now access GUI from my browser using the public IP but I did solved it turning off the firewall using:
systemctl stop firewalld
then using the GUI I just restore the backup made with FreePBX and it magically worked (wasnt magic: was a lot of hours of jobs of Issabel community. Thanks Friends!)!!
after that he only thing I made to make the PBX work was to update the Public IP in PBX PBX Configuration SIP Settings
Everything was working!
Trunks, extensions, IVR, EVERYTHING!!
Thanks to Issable community for the Archievement!
Cheers to Nicolás and Germán!