They are basically Phase 2 Systems,but are running all Phase 1 Audio . The Jacksonville System and Jax Beach Systems both show up as Phase 2 Systems in UNITUNKER and can be programmed as Phase 2 on the 496.The Jacksonville System was bid out as only wanting Phase 1,but I don't think Motorola is building different Systems.They probably build out a system as Phase 2 then just allow the user to use the Phase 1 Options. Any Professionals out there with knowledge about this ?