Wide Area Telephone Services
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Wide Area Telephone Service (WATS) was a flat-rate long distance service offering for customer dial-type telecommunications in some of the countries that adhere to the North American Numbering Plan. The service was between a given customer phone and stations within specified geographic rate areas, employing a single telephone line between the customer location and the serving central office. Each access line could be arranged for outward (OUT-WATS) or inward (IN-WATS) service, or both.
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