Method of operation of a nodal telephone and data communication

Details Method of operation of a nodal telephone and data communication Method of operation of a nodal telephone and data communication

1987-06-17

1989-03-07

Paschall, M. H.

Multiplex communications

Wide area network

Packet switching

370 62, 379229, 379230, H01H 6700

Patent

active

048113344

ABSTRACT:
A method of operation of a telephone and data PABX communication network which comprises a set of nodes interlinked by means of TDM-transmission lines. Each node serves an individual switching exchange and comprises its own control module. To a user the network is manifested as a single system. The invention flexibly sub-divides such a system, allowing the offering of fully integrated specific facilities within the boundaries of domains that can be arbitrarily defined within the total network configuration. Local data is provided in each node for a specific facility-bounded program which dictates the operation of a control module of the node. Such data contains an adjustable address file having the addresses of those nodes over which a call or a specific facility to which such program relates can be accepted. Nodes to which a specific facility is extended and whose addresses are incorporated in the file of each such node define a fully integrated domain wherein the relevant specific facility can be offered.

REFERENCES:
patent: 4445171 (1984-04-01), Neches
patent: 4516272 (1985-05-01), Yano
patent: 4561090 (1985-12-01), Turner
patent: 4623996 (1986-11-01), McMillen
patent: 4627048 (1986-12-01), Larson
patent: 4656622 (1987-04-01), Lea
patent: 4677609 (1987-06-01), Piereth et al.

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