Method and apparatus for interconnecting a plurality of terminal

Details Method and apparatus for interconnecting a plurality of terminal Method and apparatus for interconnecting a plurality of terminal

1995-10-11

1998-07-28

Pham, Chi H.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370463, 370465, H04L 1266

Patent

active

057870870

ABSTRACT:
An interface port expansion device (302) allows for more than one terminal equipment (304, 306, 308 and 310) having embedded U-interface termination's to interface to the ISDN via the U interface. The port expansion device (302) can take the form of a separate stand-alone device or a circuit which is integrated into a terminal apparatus. The port expansion device (302) includes a plurality of local (secondary) U interface ports (314, 316, 318 and 324) for interconnecting the terminal equipment (304, 306, 308 and 310) and a network side U interface (312) for interconnection to the ISDN. In other aspects of the invention, methods for allowing a plurality of terminal equipment having embedded U-interface terminations to receive messages from and transmit messages to the Integrated Services Digital Network (ISDN) via a single network side U-interface are described.

REFERENCES:
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patent: 5442630 (1995-08-01), Gagliardi et al.
patent: 5444703 (1995-08-01), Gagliardi et al.
patent: 5450396 (1995-09-01), Havermans
patent: 5479407 (1995-12-01), Ko et al.

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