Check out this free Amazon App. Normally $1.50, right now you can get the app Smart Ring for FREE! Want to take calls from a select group of people only? Put them on a ‘White List.’ Worried you might miss a call from someone not on your ‘White List.’ Enable the ‘Emergency Calls’ feature and a caller can reach you if they call 3 times in 15 minutes. There are many features that Smart Ring offers to customize your incoming calls and texts. Get the Smart Ring app free while this offer lasts.