Update the phone application for your Android device * Marshmallow to optimize your calling experience and take control of your calls through features such as the display of caller ID and call blocking .
Discover who is calling before answering . The names of institutions is now displayed on the call screen next to their number.
Do not respond to calls that you want to receive. You can now block numbers to prevent unwanted calls .
Check your messages without having to call your voicemail : display them , listen to them and delete them directly from the phone application.
For More Info Google Play