Method for establishing communication links in an exchange...

Details Method for establishing communication links in an exchange... Method for establishing communication links in an exchange...

2008-01-22

2008-01-22

Chan, Wing (Department: 2616)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C370S360000, C370S375000, C370S384000, C379S156000

Reexamination Certificate

active

07321586

ABSTRACT:
The present invention relates to a method wherein communication links between subscriber access lines of subscriber access units of an exchange in a switching system comprising a number of exchanges are established within the exchange concerned either directly in the respective subscriber access unit or between the subscriber access units connected by trunk lines directly to one another or via at least one subscriber access unit, without involving a central switching device of the exchange concerned, and under the control of the central controller belonging to this exchange.

REFERENCES:
patent: 4442502 (1984-04-01), Friend et al.
patent: 4509168 (1985-04-01), Renner
patent: 4583218 (1986-04-01), Ardon et al.
patent: 4972465 (1990-11-01), Cline et al.
patent: 5533114 (1996-07-01), Ballard et al.
patent: 6850517 (2005-02-01), Kakiuchi
patent: WO00/16565 (2000-03-01), None
Billhardt, R. A., et al; “A Survey of the Remote Switching Capabilities of the 5ESS Switch”; Proceedings of the IEEE Int'l Conf on Communications, Jun. 22-25, 1986, pp 1105-1110.
“EWSD Remote Switching Unit—The intelligent solution for a smart remote”; Siemens Information and Communications Networks; 1999, pp. 1-16.

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