MitelInMyBlood
Technical User
I don't know how many here would have occasion to use 7-digit extensions, but if you should ever need to, beware that the set registration and set replacement feature access codes + the extension number cannot exceed 10 digits total. There's an open DPAR on this, but I haven't heard if it's design-intent and just not documented or if they consider it a bug and plan to fix it in a later load. As far as I know it's present in all 3300 loads thru 5.2.5.4.