1. Dataphone Digital Service product> DDS The first private-line digital service offered by AT&T, with data rates typically at 2. 4, 4. 8, 9. 6 and 56 kilobits per second. DDS is now part of AT&Ts Accunet family of services. Most LEC local exchange carriers and IXC IntereXchange Carriers offer similar services.
dataphone digital service | digital data service |