Dispersed telecommunication network structure

Describes a dispersed telecommunication system which permits telephone and other exchanges to be located close to the subscribers but are controlled by computers remotely located so the computers can be economically Urge. Although a computer may serve several exchanges, each computer will be connected to two or more computers to provide for reliability of service. The use of the large computers permits the operation and organization of the networks to be homogeneous while the techniques used for implementation are heterogeneous. Data links using digital transmission will interconnect computers and exchanges to handle all supervisory and control traffic.