One of the biggest features lacking on the iPhone is the ability to block incoming calls from specific people. Previously you needed a jailbroken device and an app called iBlacklist to block calls, but soon everyone will be able to stop their exes or bill collectors from contacting them. Developers found a new "Block Contact" option in the recently released iOS 7 beta. The new feature allows you to block phone calls, FaceTime calls and messages from a specific contact listed in your Phone app.
You can easily remove people from your blocked caller list by going to their contact screen via the Phone app. There is a "Unblock this Caller" option at the bottom of each individual contact card that has been blocked. Just tap the "Unblock" button and you will be able to receive calls from that specific person again. This is a great option for on-again, off-again relationships, and a new way to identify and ignore telemarketers.
Call blocking was one of the new features not covered by Apple during its keynote on Monday. However, it was briefly mentioned in the official iOS 7 press release.