AT&T Wireless announced that it will shortly start offering free mobile-to-mobile calls for customers with qualifying plans.

New customers will automatically receive free, unlimited calling from their mobile-to-mobile calling area when they sign a two-year contract for qualifying calling plans of $39.99 USD or more. In addition, current customers can request the new offer if they are already on such a plan, or upgrade to one, and renew their contract for two years.

The offer will be launched everywhere on February 6, when information about it will be available at from the AT&T Wireless web site and the operator's retail stores.