Destination routing
Encyclopedia
Destination routing is a term used in telecommunications
to define a sequential pathway that messages must pass through to reach a target destination.
for circuit based calls, the destination stations are identified by a station address or more commonly, a destination telephone number
. In the network there are 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 the network
are for transport only. These are sometimes called tandem 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.
Telecommunication
Telecommunication is the transmission of information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded...
to define a sequential pathway that messages must pass through to reach a target destination.
Overview
In the context of telephone switching systemsElectronic switching system
In telecommunications, an electronic switching system is:* A telephone exchange based on the principles of time-division multiplexing of digitized analog signals. An electronic switching system digitizes analog signals from subscriber loops, and interconnects them by assigning the digitized...
for circuit based calls, the destination stations are identified by a station address or more commonly, a destination telephone number
Telephone number
A telephone number or phone number is a sequence of digits used to call from one telephone line to another in a public switched telephone network. When telephone numbers were invented, they were short — as few as one, two or three digits — and were given orally to a switchboard operator...
. In the network there are 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 the network
Telecommunications network
A telecommunications network is a collection of terminals, links and nodes which connect together to enable telecommunication between users of the terminals. Networks may use circuit switching or message switching. Each terminal in the network must have a unique address so messages or connections...
are for transport only. These are sometimes called tandem switches
Class 4 telephone switch
A Class 4, or Tandem, telephone switch is a U.S. telephone company central office telephone exchange used to interconnect local exchange carrier offices for long distance communications in the Public Switched Telephone Network....
. 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.