I don't know about you but I get Robocalls all daylong. My phone rings constantly from numbers I don't know, and the voicemails they leave saying the IRS is looking for me, they have a warrant out for me, or I owe some money and will go to jail. It's pretty funny when they leave those calls.
According to CNet.com, you'll be thanking Apple for this new feature! Instead of blocking every robocall number when they come in, how about not having your phone ring at all? How awesome would that be?! You go to settings, then phone, and there will be a feature you can turn on called Silence Unknown Callers. That feature will silence calls from unknown numbers in your phone and will be sent to voicemail. The call will show up on your recents list. Don't worry if the number you have is in your contacts or you called them your phone will ring.