block iphone incoming call and incoming sms

Hello, I need a application (xcode source code) for iPhone (IOS 4.3 to 5.01 without jailbreak) who detect and block the incoming calls and incoming sms. This application will run background and when the iphone receive a callin then : -detect the phone number from incoming calls and incoming sms -hide the original call application view -send busy semnal(reject call) Please DO NOT bid without presenting a demo version. WE will not be considered bids are not accompanied by a demo.