Reddit reviews Sentry 2.0 Phone Call Blocker
We found 2 Reddit comments about Sentry 2.0 Phone Call Blocker. Here are the top ones, ranked by their Reddit score.
Block all spam calls, including those not on the Black ListPreload White List at set up. Requires Caller Id Service.No need to push REJECT button anymoreFully automatic blocking after set upEasy setup, perfect for seniorsNOTE: Check User Guide on Technical Specification before use
Buy your relative a call blocker.
I use this one. I went from several telemarketing calls every day to receiving 1 in 3 years. All the box does it ask callers to press "1" if they are not a telemarketer. Strange, but it totally works.
This newer one makes adding numbers to your whitelist easier, but you really don't need a whitelist, except to add numbers for approved robocalls you are expecting. If you don't know the number, you can turn off the filter for a short time.
This from 2006 describes the SIT (Special Information Tones) that used to tell a caller the line was disconnected. "Aha!" goes the dialing computer, and strikes that number from the list.
Telemarketers caught on, and the SIT doesn't work anymore.
Call blockers like the Sentry may help (and use several different methods of discouraging telemarketers), but no method is perfect. Some people really like NoMoRobo, but it doesn't work with all services.