Blacklist is a service that allows you to block calls and/or text messages from undesirable subscribers. This type of service can help businesses to reduce the number of unwanted calls they receive, which can be a significant time drain and distraction for employees. It also helps to improve the productivity of the office workers, enjoy stillness, and proper prioritization. Blacklist meaning is associated with protection and eliminating the need to distract yourself from serious tasks. This service is a standalone one that can be integrated with existing phone systems. The cost can vary depending on the provider, the level of customization, and the control required by the business.