Network emulator for private communication terminal equipment

Details Network emulator for private communication terminal equipment Network emulator for private communication terminal equipment

1996-07-22

1999-01-12

Hong, Harry S.

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

370522, 370524, 370420, 370384, 370385, 379230, 379231, 379232, 379219, H04L 1250, H04Q 1100, H04J 312, H04M 700

Patent

active

058598553

ABSTRACT:
A private communication system and an allocated, private communication terminal equipment that is not directly connectable, i.e. that is "external", has a respective terminal equipment emulation unit allocated to it. This terminal equipment emulation unit pair are connectable to one another at least via a public dialed communication network, where the connection of at least one message path and of an additional signaling path is controlled via the public dialed communication network and the switching of the paths suited to the terminal equipment emulation unit pair is checked. With the assistance of the terminal equipment emulation unit pair, isolated or external communication terminal equipment can be connected without diminishing the scope of performance features of private communication networks. Misconnections and false signalings are avoided by checking the connection suited to the terminal equipment emulation unit pair with the assistance of a specific check procedure.

REFERENCES:
patent: 4947483 (1990-08-01), Dirr
patent: 5422943 (1995-06-01), Cooney et al.
patent: 5550913 (1996-08-01), McMaster et al.
patent: 5670950 (1997-09-01), Otsuka
patent: 5671251 (1997-09-01), Blackwell et al.

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