How to decline incoming calls with messages using Quick Response on Android KitKat & Lollipop
We believe this scenario has happened to everyone at some point - your smartphone rings when you're in the middle of something. But it's not a contact you can easily dismiss and call later - it just happened to be someone really important calling while your hands were busy! Don't worry, Google's mindful engineers (or, at least, the more socializing among them) thought up a way to politely excuse yourself out of such situations and follow up with a call later. It's an Android feature called Quick Response, that lets you shoot a pre-made response of your choosing while manually denying a call. Said feature is built inside most recent Android devices, but Google itself added it for the first time in Android 5.0 Lollipop.
Since Lollipop is running on a small percentage of Android devices at the moment, we'll explore how the feature works in both Android KitKat and Lollipop. It's very easy to use and it requires absolutely no modifications.