It is strongly recommended that a full backup of the system (13 ,14 or 15) be made prior to the upgrade steps below. If necessary, this backup can be used as a restore point to a new install. Note also that the new Backup and Restore module in FreePBX 16 allows restores of backups made by previous versions.
The recommended path from FreePBX 13/14 to FreePBX-16 is to use the "Backup & Restore" functionality to take a Backup from the working FreePBX-13/14 system and then restore to newly installed FreePBX-16 system.
The following steps will have you up and running on a FreePBX-16 system with the same configuration as your existing FreePBX-13/14 system.
Take Backup of your FreePBX-13/14 System.
Take full backup of your FreePBX-13/14 system using Backup & Restore module of FreePBX-13/14. Please refer to Using the Backup module for further details of how to configure and take full backup of your 13/14 system.
Once FreePBX-16 installation is done, activate your FreePBX-16. Please refer to System Admin - Activation for more details about the system activation process.
Upgrade all FreePBX-16 modules to current
After activation , FreePBX will show you a pop up with a list of available module updates. Otherwise you can check yourself by using "Check Online" function in Module Admin. Please refer to Updates#ModuleUpdates for more details.
Please note that Backup & Restore has been completely re-designed in FreePBX-15/FreePBX-16 so you will see GUI differences in the way it used to work in FreePBX-13/14 vs FreePBX-15/FreePBX-16.