SENTRY Call Blocking blocks unauthenticated calls from being delivered to the end user’s device. It verifies the calling number, called number, and the timeframe the call will occur, ensuring that calls from your outbound calling number can only be delivered to the called party during a finite time window.
No. SENTRY Call Blocking cannot be used for calls that terminate on a landline. The technology verifies the authenticity of calls over mobile networks.