Searching for 2 apps : 1) Notify me on the lock screen of missed calls, voicemail, SMS, etc.Also, if posible lock screen should allow me to do certain actions (like replying to SMS, etc.), but not allow any phone calls (for security I prefer the phone be unlocked). IMPORTANT : lock screen should be password protected. 2) Customize the sound/ringtone when somebody leaves a voicemail. Currently (default) on my HTC Inspire (Android 2.3.3) voicemail uses the same sounds as SMS.