Channel division control equipment of the ISDN primary rate inte

Details Channel division control equipment of the ISDN primary rate inte Channel division control equipment of the ISDN primary rate inte

1996-08-16

2000-10-31

Pham, Chi H.

Multiplex communications

Pathfinding or routing

Through a circuit switch

379258, H04M 700

Patent

active

061413437

ABSTRACT:
An ISDN primary rate interface circuit having a plurality of communication channels, includes a channel division controller. According to predetermined conditions, the channel division controller selects a communication channel out of the plurality of communication channels when generating or receiving a call. The channel division controller provides private branch exchange by enabling allocation of the selected communication channel to an extension group according to a predetermined condition when generating or receiving the call.

REFERENCES:
patent: 5153908 (1992-10-01), Kakizawa et al.
patent: 5233648 (1993-08-01), Nakamura
patent: 5251254 (1993-10-01), Tanigawa et al.
patent: 5268958 (1993-12-01), Nakano
patent: 5291549 (1994-03-01), Izumi
patent: 5408527 (1995-04-01), Tsutsu
patent: 5410539 (1995-04-01), Ikeno
patent: 5579300 (1996-11-01), Lee et al.
patent: 5649004 (1997-07-01), Ikeno et al.

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