Centralized switching system > Switching controlled in response to called station addressing signal > Having shared or common switching control > In-stage or interstage scanning (e.g., link scanning) > Patents

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Class Information
Number: 379/270
Name: Telephonic communications > Centralized switching system > Switching controlled in response to called station addressing signal > Having shared or common switching control > In-stage or interstage scanning (e.g., link scanning)
Description: Subject matter which sequentially provides connection between a plurality of link between or within plural switching stages.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7570756	Method for supporting session mobility	Aug. 4, 2009
6978313	Method and system for transporting generic data messages over the public switched telephone network to customer premises equipment without establishing a call	Dec. 20, 2005
4320258	Arrangement for requesting service for called telephone subscribers	Mar. 16, 1982
4258231	Remote line switching extension for telephone exchange	Mar. 24, 1981
4110566	Switching network control arrangement	Aug. 29, 1978
4079206	Switching arrangement for a telephone system for connecting a calling subscriber set to an idle connector set upon recognizing a loop in the connector set	Mar. 14, 1978
3992592	Scanner-marker arrangement for telephone system	Nov. 16, 1976