AT&T announced new unlimited voice plans targeted to wireless users who want the predictability of flat rate pricing for unlimited minutes. The plans will be available to new and existing wireless subscribers for $99.99 a month for unlimited U.S. calling on all devices with no domestic roaming or long distance charges.

As with other voice calling plans, AT&T customers can choose from a variety of data and messaging plans to meet their needs. For example, customers with standard wireless phones can choose a data plan such as $5 for 200 text, picture, video and instant messages or $35 for unlimited messaging and MEdia Net access.

Existing customers can choose unlimited calling without extending their contract. New customers have the option of a month-to-month, 12 or 24 month contract.