 In a direct-dialed long-distance call, a call-related data and message record, named "automatic message account" (AMA), was generated.It includes further information, such as the originating and terminating telephone numbers, and the length of time of the call.The records with AMAs are stored in an electronic format that can be transmitted between computers and reformatted for processing and billing, which later comes to customer in form of hard copy via mails.