I'm glad they're adding this feature, but I do wish they would have had it before. Actually, we have been getting a lot of telemarketers calling our cellphones lately, so I am finding out about this at one of the best times. Too bad I can't block them before they call.
Every day I get about 12 new number nuisance calls. I can establish them as ignore for future but the constant new ones is frustrating. For the past month I have not been plagued with repeat numbers so my system works but there is no defense against the first time caller. I ignore it or let it go to VM which now has a nasty message for telemarketers. My phone is a Thunderbolt which can put known bad numbers in a file with their number to ignore.