When I opened voice mail from the Samsung phone app or a shortcut pre-loaded on the home screen (can't remember which), the Samsung VM app (green home screen icon) opened, I confirmed my level of service (premium VM), and my existing Verizon visual voice mail was there. From what I can tell, Verizon no longer requires a proprietary Visual VM app on Samsung phones. At least that's how it's been on my last few Galaxy phones, whether Verizon locked / branded or unlocked.