Path hunting in a distributed control switching system

Details Path hunting in a distributed control switching system Path hunting in a distributed control switching system

H - Electricity

04

Q

344/25

H04Q 11/04 (2006.01)

Patent

CA 1243760

- 125 - PATH HUNTING IN A DISTRIBUTED CONTROL SWITCHING SYSTEM Abstract A distributed control switching system having a plurality of switching modules interconnected by a time- multiplexed switch, where all call processing including the hunting of time-multiplexed switch paths between modules, is cooperatively performed by the switching modules without involving a system central control. To set up a given inter-module call, the terminating switching module sends a path hunt request message to the originating switching module defining the available time slots on the links from the originating switching module to the time-multiplexed switch. The originating switching module then selects a candidate set of time slots that are available on the links to the time-multiplexed switch from both the originating and terminating switching modules. Both the originating switching module and the terminating switching module are then available to process other path hunt requests while they contemporaneously negotiate to finally select the time slot to be used for the given call.

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