When customers of a public switched telephone network make telephone calls, they utilize a telecommunications network called a switched-circuit network. In a switched-circuit network, devices known as switches are used to connect the calling party to the called party. Each switch has a number of inlets and outlets, and by connecting a specific inlet to the correct outlet, each switch helps to complete an end-to-end circuit between users. This method is used in, for example graded multiple banks of selectors.[1]
In a modern circuit-switched network, switches can connect any inlet to any outlet; this is known as full availability.
Referencesedit
Kennedy I., Lost Call Theory, Lecture Notes, ELEN5007: Teletraffic Engineering, School of Electrical and Information Engineering, University of the Witwatersrand, 2005.
Akimaru H., Kawashima K., Teletraffic: Theory and Applications, Springer-Verlag London, 2nd Ed., 1999, p 6.
Farr R.E., Telecommunications Traffic, Tariffs and Costs: An Introduction For Managers, Peter Peregrinus, 1988, p 90.
Notesedit
^Inherent Load Balancing Bell System Technical Journal, Jan 1970, pp 135-165
January 01, 1970
limited, availability, grading, scheme, redirects, here, wikipedia, grading, scheme, wikipedia, version, editorial, team, assessment, grades, this, article, multiple, issues, please, help, improve, discuss, these, issues, talk, page, learn, when, remove, these. Grading scheme redirects here For Wikipedia s grading scheme see Wikipedia Version 1 0 Editorial Team Assessment Grades This article has multiple issues Please help improve it or discuss these issues on the talk page Learn how and when to remove these template messages This article may be too technical for most readers to understand Please help improve it to make it understandable to non experts without removing the technical details September 2010 Learn how and when to remove this message This article includes a list of general references but it lacks sufficient corresponding inline citations Please help to improve this article by introducing more precise citations July 2014 Learn how and when to remove this message Learn how and when to remove this message When customers of a public switched telephone network make telephone calls they utilize a telecommunications network called a switched circuit network In a switched circuit network devices known as switches are used to connect the calling party to the called party Each switch has a number of inlets and outlets and by connecting a specific inlet to the correct outlet each switch helps to complete an end to end circuit between users This method is used in for example graded multiple banks of selectors 1 In a modern circuit switched network switches can connect any inlet to any outlet this is known as full availability References editKennedy I Lost Call Theory Lecture Notes ELEN5007 Teletraffic Engineering School of Electrical and Information Engineering University of the Witwatersrand 2005 Akimaru H Kawashima K Teletraffic Theory and Applications Springer Verlag London 2nd Ed 1999 p 6 Farr R E Telecommunications Traffic Tariffs and Costs An Introduction For Managers Peter Peregrinus 1988 p 90 Notes edit Inherent Load Balancing Bell System Technical Journal Jan 1970 pp 135 165 Retrieved from https en wikipedia org w index php title Limited availability amp oldid 1076090780, wikipedia, wiki, book, books, library,
