Multiplex communications – Wide area network – Packet switching
Patent
1979-11-08
1982-09-21
Brown, Thomas W.
Multiplex communications
Wide area network
Packet switching
370 80, 370 85, H04J 316, H04J 602, H04Q 1104
Patent
active
043510493
ABSTRACT:
User stations for digital time multiplex communications networks with decentralized exchange which are provided with basic equipment, independent of the structure of the network, composed of modular units which are used according to the requirements of the user, the service to be performed and the structurally given conditions are further provided with an additional equipment performing features including call transfer, call diversion, automatic call transfer, etc.
REFERENCES:
patent: 3790717 (1974-02-01), Abramson et al.
patent: 3856993 (1974-12-01), Closs et al.
patent: 4271506 (1981-06-01), Broc et al.
Brown Thomas W.
Heinrich-Hertz-Institut fur Nachrichtentechnik Berlin GmbH
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