Yes, I partially mean the default layout. But also, I mean the other possible options, whatever they might be.
Look at it this way. I hear a female voice on my telephone when testing the system. I did not know if the recorded voice was from my Yealink phone, the FusionPBX, the FS server, my provider, or some other source between me and the called number. To figure out the meaning of the message requires finding out where it came from. By contacting Yealink, I was finally able to determine that it did not come from their devices. It is always a process of elimination when doing diagnostics.
The same applies to understanding the first part of Fusion, which is the dashboard.
Why does it use the word Forward. Why does it use the word Extension. If these are not defined, they are meaningless.
To address your last comment, the problem of GUI design is that the user is forced to assume certain things even when they should not have to. In this case, my display shows only particular information. However, it does not explain why. Therefore, the user must gather information based upon the words used. If that information is not available, exactly how would the user figure anything out?