Utilization of a local exchange network by a plurality of...

Details Utilization of a local exchange network by a plurality of... Utilization of a local exchange network by a plurality of...

2007-05-08

2007-05-08

Deane, Jr., William J. (Department: 2614)

Telephonic communications

Centralized switching system

C379S243000

Reexamination Certificate

active

10221143

ABSTRACT:
The invention relates to an exchange for connecting telecommunications terminals of subscribers to a telecommunications network, comprising subscriber lines via which the respective telecommunications terminals are linked with the exchange. Said exchange is operated by a first network operator and is used by further network operators. The subscriber lines and subscribers are associated with one of said network operators each and the subscribers select the exchange via the telecommunications terminals to establish a telecommunications link via the respective network operator. The invention further relates to a method for operating an exchange that is used in the inventive exchange.

REFERENCES:
patent: 5539817 (1996-07-01), Wilkes
patent: 5574783 (1996-11-01), Dunn
patent: 6256380 (2001-07-01), Berkowitz et al.
patent: 6594352 (2003-07-01), Smith
patent: 2004/0013261 (2004-01-01), Huttel et al.
patent: 0 783 221 (1997-07-01), None
patent: 0 817 512 (1998-01-01), None
patent: WO 00/44153 (2000-07-01), None

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