Your phone is your door to the world, and you shouldn't open it for just anyone. With Call Filter, you can screen incoming calls, auto-block spam and report any unwanted numbers. Or, upgrade to Call Filter Plus with Caller ID for added security. Put a name to the unknown numbers, make your own personal block list, and even assess the risk level of incoming calls. Enroll today and start answering with confidence. Eligible customers get a -day trial of Call Filter Plus. Customers can choose to enroll in Call Filter to get the basics (spam detection, blocking and reporting) for free, or subscribe to Call Filter Plus for all that and more for $. per month, per line. Accounts with or more eligible lines can subscribe to Call Filter Plus (Multi-line) for $./mo by logging in to My Verizon. If you choose to enroll in Call Filter or Call Filter Plus, 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.