Voice over Internet protocol service provider Skype announced new and expanded calling plans Monday. The new offerings will enable subscribers to make calls to more than one-third of the world's population for a single monthly flat rate, the company said. The three new subscription plans come with no long-term contracts and provide users with up to 10,000 minutes, or five hours a day, of calling each month to 34 countries. Users are able to make calls to landline phones whenever they choose.