I am looking for any documentation describing FreePBX database schema. Searching forums and google did not help. Could anyone point me in the right direction?
Every module has a different database structure and it depends on the developer. What are you looking for specifically?
I was just wondering if there is a “core” schema for any FreePBX installation irrespective of additional modules.
FreePBX is completely modular. You can’t say irrespective of additional modules. Without any modules installed FreePBX does nothing.