Verizon Call Filter takes the guesswork out of answering your phone, with features that screen incoming calls and block spam. With Call Filter, you can: Detect spam calls with real-time alerts on your incoming call screen so you can avoid them. Easily set up filters to automatically block spammers based on their risk level. Report an unwanted number as spam to help continue improving our algorithm. Upgrade to Call Filter Plus for added security, with features that let you put a name to unknown numbers, make your own personal block-list and assess the risk level of incoming calls in real-time. Put an end to mystery calls, and start answering with confidence with the Verizon Call Filter App. *Eligible customers get a 10-day trial for Call Filter Plus. At the end of the trial, customers can choose to subscribe to Call Filter Plus at $2.99 per month, per line. If no action is taken, customers will be auto-enrolled in the free version of Call Filter. Accounts with 3 or more eligible lines can subscribe to Call Filter Plus (Multi-line) for $7.99/mo by logging in to My Verizon. If you choose to enroll in Call Filter or Call Filter Plus via the app, the spam filter will be automatically set to block high-risk spam callers, but you can change your block settings at any time. Data charges apply.*Please reference https://www.vzw.com/support/how-to-use-call-filter/ and https://www.vzw.com/support/call-filter-faqs/ for step-by-step instructions on how to use the app and answers to frequently asked questions. For additional details on Call Filter and Call Filter Plus, please see https://www.verizonwireless.com/solutions-and-services/call-filter/.