Phone Call Detail Record

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A Phone Call Detail Record is an event record with the contextual data of a phone call.



References

2013

  • http://en.wikipedia.org/wiki/Call_detail_record
    • A call detail record (CDR), also known as call data record, is a data record produced by a telephone exchange or other telecommunications equipment documenting the details of a phone call that passed through the facility or device.[1][2][3] It is the automated equivalent of the paper toll tickets that were written and timed by operators for long-distance calls in a manual telephone exchange.

      A call detail record is composed of data fields that describe the telecommunication transaction, such as:[4][5]

      • the phone number of the subscriber originating the call (calling party)
      • the phone number receiving the call (called party)
      • the starting time of the call (date and time)
      • the call duration
      • the billing phone number that is charged for the call
      • the identification of the telephone exchange or equipment writing the record
      • a sequence number identifying the record
      • additional digits on the called number used to route or charge the call
      • the disposition or the results of the call, indicating for example whether the called party was busy, or the call failed
      • the route by which the call entered the exchange
      • the route by which the call left the exchange
      • call type (voice, SMS, etc.)
      • any fault condition encountered
    • Each exchange manufacturer decides which information is emitted on the tickets and how it is formatted. Examples:
      • Send the timestamp of the end of call instead of duration
      • Voice-only machines may not send call type
      • Some small PBX does not send the calling party
    • A station messaging detail record (SMDR) is similar to a CDR, but the most important difference is in the usage[vague].[6]
  1. Horak, Ray (2007). Telecommunications and data communications handbook. Hoboken, N.J.: Wiley-Interscience. pp. 110–111. ISBN 0470127228. http://books.google.com/books?id=dO2wCCB7w9sC&pg=PA111&dq=%22Call+detail+record%22&sa=X&ei=s-iUUO6gHseX0QGXzoGADw&ved=0CD8Q6AEwBDgK#v=onepage&q=%22Call%20detail%20record%22&f=false. 
  2. Peterson, Kerstin Day (2000). Business telecom systems : a guide to choosing the best technologies and services. New York, NY: CMP Books. p. 412. ISBN 1578200415. http://books.google.com/books?id=W79R0niNU5wC&pg=PA413&dq=%22Call+detail+record%22&sa=X&ei=s-qUULjoGOGR0QHn14BA&ved=0CDkQ6AEwAjge#v=onepage&q=%22Call%20detail%20record%22&f=false. 
  3. Petersen, Julie K. (2002). The Telecommunications Illustrated Dictionary. (2nd ed. ed.). Hoboken: CRC Press. p. 147. ISBN 1420040677. http://books.google.com/books?id=b2mMzS0hCkAC&pg=PA147&dq=%22Call+detail+record%22&sa=X&ei=QOuUUKChHojb0QGO_oCgDA&ved=0CEsQ6AEwCDgo#v=onepage&q=%22Call%20detail%20record%22&f=false. 
  4. Peterson, Kerstin Day (2000). Business telecom systems : a guide to choosing the best technologies and services. New York, NY: CMP Books. p. 412. ISBN 1578200415. http://books.google.com/books?id=W79R0niNU5wC&pg=PA413&dq=%22Call+detail+record%22&sa=X&ei=s-qUULjoGOGR0QHn14BA&ved=0CDkQ6AEwAjge#v=onepage&q=%22Call%20detail%20record%22&f=false. 
  5. Petersen, Julie K. (2002). The Telecommunications Illustrated Dictionary. (2nd ed. ed.). Hoboken: CRC Press. p. 147. ISBN 1420040677. http://books.google.com/books?id=b2mMzS0hCkAC&pg=PA147&dq=%22Call+detail+record%22&sa=X&ei=QOuUUKChHojb0QGO_oCgDA&ved=0CEsQ6AEwCDgo#v=onepage&q=%22Call%20detail%20record%22&f=false. 
  6. Peterson, Kerstin Day (2000). Business telecom systems : a guide to choosing the best technologies and services. New York, NY: CMP Books. p. 80,81,87,93,118,213,214,218,410,411,433,436. ISBN 1578200415. http://books.google.com/books?id=W79R0niNU5wC&q=SMDR#v=snippet&q=SMDR&f=false.