Blocker.

I realize I'm about 2 years too late on the posts regarding the "LIMIT of 25 calls to be Blocked" by Xfinity, and I was irritated as well so I researched an "ADD-ON" to my Land Line and it's thew perfect solution. It's called the "CPR v5000 CALL BLOCKER FOR LANDLINE PHONES" you can find it on Amazon or eBay or wherever it pops up for sale when you Google it. It comes with millions of numbers already stored in it that are typically SPAM and once you get it set up...there's a BIG RED BUTTON on the device that allows you to "Block Now" and their number gets added to the database never to be heard from again.  It slowed my calls down from 6 to 12 per day (somedays) down to one or less per day after the first week of being installed.  Now, you know that ROBO Calls will jump to the new number until they run out of extensions to use, but I don't care, it stopped 99% of the trash so it was worth the $65.00 I paid for it.  Hope that helps the folks that may still be looking for a solution until Xfinity increases their limit to "unlimited" like we have on our iPhones! All the best!