Tag: dual mode call block review

The SENTRY 3.1 Call Blocker is advertised to "block all robo, spam, and telemarketer calls" with 100% accuracy. With a 9999 number capacity you should be able to rely on this device to work for a very long time. There are two modes, Basic and Advanced. Basic blocks all calls it identifies as robocalls and sends them to the blacklist, without alerting you that there was a spam caller. Advanced Mode screens all incoming calls that are not in your directory, and has an automated message that tells the caller to hang up…continue reading →