Call detail record: Difference between revisions

A '''call detail record''' ('''CDR''') is a [[Record (computer science)|data record]] produced by a [[telephone exchange]] or other telecommunications contains various attributes of the call, such as time, duration, completion status, source number, and destination efhnumber.<ref name=Horak>{{cite book|last=Horak|first=Ray|title=Telecommunications and data communications handbook|year=2007|publisher=Wiley-Interscience|location=Hoboken, N.J.|isbn=0470127228|pages=110–111|url=http://books.google.com/books?id=dO2wCCB7w9sC&pg=PA111&dq=%22Call+detail+record%22&hl=en&sa=X&ei=s-iUUO6gHseX0QGXzoGADw&ved=0CD8Q6AEwBDgK#v=onepage&q=%22Call%20detail%20record%22&f=false}}</ref><ref name=KDP>{{cite book|last=Peterson|first=Kerstin Day|title=Business telecom systems : a guide to choosing the best technologies and services|year=2000|publisher=CMP Books|location=New York, NY|isbn=1578200415|page=412|url=http://books.google.com/books?id=W79R0niNU5wC&pg=PA413&dq=%22Call+detail+record%22&hl=en&sa=X&ei=s-qUULjoGOGR0QHn14BA&ved=0CDkQo6AEwAjge#v=onepage&q=%22Call%20detail%20record%22&f=false|ref=harv}}</ref><ref name=JKP>{{cite book|last=Petersen|first=Julie K.|title=The Telecommunications Illustrated Dictionary.|year=2002|publisher=CRC Press|location=Hoboken|isbn=1420040677|page=147|edition=2nd ed.|url=http://books.google.com/books?id=b2mMzS0hCkAC&pg=PA147&dq=%22Call+detail+record%22&hl=en&sa=X&ei=QOuUUKChHojb0QGO_oCgDA&ved=0CEsQ6AEwCDgo#v=onepage&q=%22Call%20detail%20record%22&f=false}}</ref> It is the [[automate]]d equivalent of the paper toll tickets that were written and timed by [[Switchboard operator|operator]]s for [[long-distance call]]s in a [[telephone switchboard|manual telephone exchange]].