International Switched Digital Service
International switched digital service is an evolution of domestic switched digital services and will complement existing private line digital services between the United States of America (USA) and other countries. With the ever increasing inter-dependency between the international communities for trade, commerce, and technology there is a need for dial-up and usage- priced digital transport services that are ubiquitous. AT&T, as a service provider, is responding to such a need with the phased introduction of international switched digital service between the USA and other countries.