Call Blocker

A call blocker is a tool or feature used to prevent unwanted phone calls, such as spam, telemarketing, or harassing calls. It can be found in smartphones as an app, in landline phones, or as a service provided by telecom companies. Call blockers work by allowing users to create a list of numbers they want to block, automatically rejecting calls from those numbers. Some advanced call blockers can also identify suspicious numbers and block them as well. This helps maintain privacy and reduce interruptions from unwanted calls.