Webmuch: The iOS 7 will allow you to block calls from a particular numbers that will save the sanity of the system. This is a solution for you if telemarketing spammers bother you. Other than this if the clingy executives are calling you in the mid night. It allows the developer of a third party to modify the Phone App of Android phones. Apple has chosen this special type of feature to be offered to the users. The new options of the privacy policies have been mentioned by Apple.