I'd like to be able to remove handsets/extensions from appearing in the Phonebook soft button. Things like the System Admin, analog fax lines, etc. These things don't necessarily need an appearance here, and potentially some *need* to be hidden.

I would like to see this too. In addition there are a few extensions that users have asked to remain hidden from the softbutton phonebook, or website phonebook.

I'd like to see this as well.

I will agree. The first one to always pop up is the door extension. Try explaining that to a customer.