Elliot Eichen

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While the internal networks of almost all telecommunications providers are completely digital, the services provided to end-users (customers) by telecommunications providers voice, modem, fax, etc. are today predominantly analog. However, the ability and demand to provide digital services basic and primary rate ISDN, ancl IP over digital subscriber loop(More)
A high-gain screen can be made as a sandwich of a hologram and a retroreflective screen material. When a hologram is used in front of the screen instead of the screen material alone, the position of high-brightness viewing can be moved to any desired angle rather than being directed back along the projection beam.
A nationwide internet telephony network is described that uses H.323 gateways distributed around the country to provide customers with local telephone access to application services hosted at a central data center. A key technology that enables deployment of the network is automated configuration management. The configuration management system includes a(More)
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