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  2. Call detail record - Wikipedia

    en.wikipedia.org/wiki/Call_detail_record

    A call detail record (CDR) is a data record produced by a telephone exchange or other telecommunications equipment that documents the details of a telephone call or other telecommunications transactions (e.g., text message) that passes through that facility or device. The record contains various attributes of the call, such as time, duration ...

  3. Telecommunications rating - Wikipedia

    en.wikipedia.org/wiki/Telecommunications_rating

    To perform the rating calculations it is necessary to produce a Call detail record/EDR. [citation needed] A Call detail record [3] [4] (CDR, also known as Call Data Record) [5] is "a record of a call setup and completion", [5] and its format "varies among telecom providers or programs", which some allow to be configured by the user.

  4. Automatic message accounting - Wikipedia

    en.wikipedia.org/wiki/Automatic_Message_Accounting

    For detail billed calls, the punch recorded both calling and called numbers, as well as time of day. For message rate calls, only the calling number and time of day. In some electromechanical offices in the 1970s, the paper tape punch recorders were replaced by magnetic tape recorders.

  5. Telecommunications mediation - Wikipedia

    en.wikipedia.org/wiki/Telecommunications_mediation

    Aggregation of partial call detail records related to the same call; Format change and call detail record normalization; Business transformation of data; In a telecom billing scenario, mediation is the first step after receiving a call detail record. The mediated call detail record files are forwarded to a rating engine, which calculates the ...

  6. Communications Assistance for Law Enforcement Act - Wikipedia

    en.wikipedia.org/wiki/Communications_Assistance...

    The Act obliges telecommunications companies to make it possible for law enforcement agencies to tap any phone conversations carried out over its networks, as well as making call detail records available. The act stipulates that it must not be possible for a person to detect that his or her conversation is being monitored by the respective ...

  7. Cellphone expert testifies missing data benefits University ...

    www.aol.com/news/cellphone-expert-testifies...

    "It is a terrible practice to justify probable cause with these very detailed call detail records that give breadcrumb-like trails for individuals and then not map it," Ray said.

  8. Customer proprietary network information - Wikipedia

    en.wikipedia.org/wiki/Customer_proprietary...

    Customer proprietary network information (CPNI) is the data collected by telecommunications companies about a consumer's telephone service. [1] It includes the time, date, duration and destination number of each call, the type of network a consumer subscribes to, and certain other information that appears on the consumer's telephone bill. [2]

  9. Charging data record - Wikipedia

    en.wikipedia.org/wiki/Charging_Data_Record

    For mobile telecommunications, the Charging Data Record (CDR) is, in 3GPP parlance, a formatted collection of information about a chargeable telecommunication event (making a phone call, using the Internet from your mobile device).