Ahhh… Yes, our user info is populated via MS Active Directory.
In fact, “Primary Linked Extension” under “Login Details” tab gets defaulted to “none” all the time, I was wondering why it was but I didn’t pay too much attention to it since it wasn’t causing issue in general PBX usage.
Perhaps those setting gets wiped out when PBX receives LDAP update from Active Directory? In our setup is read only, I wonder how I can I keep those manually modified setting under User Management.