Avaya IPOffice 500v2 Config Reset
We have taken over a nearby office (downstairs) and as such have come into possession of the previous tennats equipment (they left in some hurry and not on the best of terms with the building owners). One of these items is the phone system, an Avaya IPOffice 500v2 and a collection of compatible handsets. Rather than reinventing the wheel I'd quite like to get this up and running. To do so I will need to gain access to the system and reset/reconfigure it. I can find little to no information in the Avaya support website to clue me in on how to do this. Do any Edugeekers own such a telephone system and can give me a clue as to how to reset it to factory settings? Additionally, what do I do about firmware upgrades and licensing? Is it attached to the hardware? or will I 'lose' everything when I reset it?