Telecommunications system across national borders

摘要

A telecommunications system for providing telecommunication services across national borders to a plurality of system subscribers. The system includes an operations center for receiving incoming requests for communications with a selected subscriber and a network interface for coupling the operations center to a digital data network for sending and receiving data signals. Satellite up and down links couple the operations center to a plurality of earth based broadcast stations for broadcasting control signals to portable communication terminals adapted to be carried by subscribers of the system. The control signals are used to activate the terminals to automatically connect to the operations center via the digital data network in order to conduct a communications session.