SENTRY V1.0 Dual Mode Call Blocker
Immediately Block all - Robo Calls, TeleMarketer Calls, Political Calls, Survey Calls, ,Donation Calls, Junk Faxes You don't need to do a thing! You don't need to hear the spammer first and then block the number. SENTRY brings peace from the moment you plug in. No Setup Required No External Power Required 9999 Black/White List Requires caller ID service to work
