[nznog] Alternative DSL?

Questions for NZNOG: In a new apartment building with CAT5 run from each unit to a central closet, installed by the developers, who owns the CAT5? If the CAT5 is the property of the building body corporate, is it permissable for an alternative network operator to install their own mini-DSLAM, and provide alternative DSL to building occupants? If this unit is not using Telecom lines, does it need to be Telepermit approved? If competitive DSL is run over spare pairs (not in use by TelecomNZ), will there be any implications for residents who subscribe to JetStream? Am I going to end up in pain for asking these questions? Cheers, Jon