AT&T's 5ESS(R) Switch Makes ISDN Work

For more than a year (December 1986 through February 1987), the only commercial applications of integrated Services Digital Network (ISDN) implemented used AT&T's 5ESS Switch. Today, AT&T's 5ESS Switch continues to lead all others in ISDN implementations. These represent significant milestones as telecommunications evolves toward Information Movement and Management (IM&M). End users and network providers enjoying increased information productivity have grown steadily as applications have moved toward an intelligent next-generation network; information productivity will be enriched as network elements unite into a common IM&M environment. The capabilities of AT&T's 5ESS Switch bring out the best in the public switched network.