how do i setup a ringback tone?

In order to use ringback tones, you must be signed up for the $5/month recurring charge. Your monthly subscription includes 2 ringback tone credits (meaning you get 2 tones per month with the service) each billing cycle that, if unused, expire when the next billing cycle begins. Once you are signed up for the monthly ringback tone service you can visit the ringback tones storefront to purchase the tones you want. This storefront is located in your phone's WAP application. If you would like to purchase more than 2 ringback tones you will need to add funds to your Flex Bucket to purchase additional tones.