Intracall feature for access network

Details Intracall feature for access network Intracall feature for access network

2005-11-29

2005-11-29

Tieu, Benny (Department: 2642)

Telephonic communications

Plural exchange network or interconnection

C379S220010, C370S352000

Reexamination Certificate

active

06970549

ABSTRACT:
An access network adapted to be coupled to a local exchange over a high-speed link is provided. The access network has a digital line carrier having a port adapted to be coupled to the high-speed link and a plurality of line cards. Each line card has at least one port adapted to be coupled to a transceiver. The digital line carrier selectively connects a transceiver associated with a port of one of the plurality of line cards of the digital line carrier with a transceiver associated with a port of another line card of the digital line carrier based on a signal sent to and returned by the local exchange.

REFERENCES:
patent: 5781623 (1998-07-01), Khakzar
patent: 6335929 (2002-01-01), Haster
patent: 6625143 (2003-09-01), Kamiya et al.
patent: 2003/0076931 (2003-04-01), Nakagawa et al.
patent: 2003/0133407 (2003-07-01), Segev et al.
patent: 2003/0133444 (2003-07-01), Wakamatsu
patent: WO 98/58502 (1998-12-01), None

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