Destination routing
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Intelecommunications,destination routingis a methodology for selecting sequential pathways that messages must pass through to reach a target destination, based on a single destination address.
Inelectronic switching systemsfor circuit-based telephone calls, the destination stations are identified by a station address or more commonly, atelephone number.
Description
[edit]The telephone network comprises various classes of switching systems. An end office switch connects directly to the stations. It knows which circuit to activate (ring) when given a destination number. Other switches in thenetworkare for transport only. These are sometimes calledtandem switches.In this case, the goal of destination routing would be to select an outbound span for a particular destination number. The objective is to get a continuous signal path from the starting location of the caller to the ending location of the called party.