The upcoming iPhones can sport a intuitive new feature that will let your friends know if you are available to pick their calls based upon the current time zone, ringer silence status, battery life, location and cell network strength. Apple's U.S. Patent No. 9,008,633 describes a system by which a first phone automatically reports its operating status data to a central server. Mobile phones are a necessity these days. People carry them almost everywhere they go. Sometimes though, the calls or texts can become intrusive depending on certain situations. Though caller ID services allow the receiver to know that the call can be ignored to voice mail, Apple's latest patent attempts to go beyond that. The new IM style broadcast system will allow the caller to know in advance whether the callee is available for picking up the call beforehand. Just like WhatsApp's "last seen" status, iPhones will now allow the callers to know whether they must call or not based on the callee's phone settings. Supppose, you switch your phone to silent mode and are in a different time zone than the caller, the callee will get a notification that their call may go unanswered. Users will also have an option to set custom messages based on different settings. Apple's patent specifically mentions Facetime calling as a prime candidate for implementation, but leaves the door open for other platforms, such as cellular phone services. Considering concerns regarding data privacy, however, a backend system that openly keeps tabs on a user's whereabouts and device activity, then shares that data through a commonly used app, may not make it into a shipping product anytime soon. The patent was first filed in February 2012 and was granted this Monday.