Speaking from the folks here in the Optical TAC. Vista is not supported. And we have also not seen any customers that have been succesful at getting it to work.
Alrighty then. The 15305 is used as an edge device for the ONS15454E (SDH). The 15305 will also work with other vendors equipment. The 15305 can break the signal down as low as an E1/T1. Hope this helps.