enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Erlang (unit) - Wikipedia

    en.wikipedia.org/wiki/Erlang_(unit)

    The Erlang B formula (or Erlang-B with a hyphen), also known as the Erlang loss formula, is a formula for the blocking probability that describes the probability of call losses for a group of identical parallel resources (telephone lines, circuits, traffic channels, or equivalent), sometimes referred to as an M/M/c/c queue. [5]

  3. Call-second - Wikipedia

    en.wikipedia.org/wiki/Call-second

    For example, one call-hour could be one call for an hour or two (possibly concurrent) calls for half an hour each. Call-seconds give a measure of the average number of concurrent calls. Offered load is defined as the traffic density per unit time, measured in erlangs. An erlang is defined as one call-hour per hour, or 3,600 call-seconds per hour.

  4. Erlang distribution - Wikipedia

    en.wikipedia.org/wiki/Erlang_distribution

    This can be used to determine the probability of packet loss or delay, according to various assumptions made about whether blocked calls are aborted (Erlang B formula) or queued until served (Erlang C formula). The Erlang-B and C formulae are still in everyday use for traffic modeling for applications such as the design of call centers.

  5. Grade of service - Wikipedia

    en.wikipedia.org/wiki/Grade_of_service

    "Grade of Service" sometimes means a measure of inbound call center traffic to verify adherence to conditions to measure the success of customers served. On the other hand, the quality of service which a single circuit is designed or conditioned to provide, e.g. voice grade or program grade is called the quality of service.

  6. Offered load - Wikipedia

    en.wikipedia.org/wiki/Offered_load

    In the mathematical theory of probability, offered load is a concept in queuing theory. The offered load is a measure of traffic in a queue. The offered load is given by Little's law: the arrival rate into the queue (symbolized with λ) multiplied by the mean holding time (symbolized by τ), equals the average amount of time spent by items in the queue.

  7. List of call centre companies - Wikipedia

    en.wikipedia.org/wiki/List_of_call_centre_companies

    The following is a list of notable call centre companies: Company Founded Employees Revenue Locations Atento: 1999 154,000 Concentrix: 1983 290,000+ US$5.3 billion (2020)

  8. Queueing theory - Wikipedia

    en.wikipedia.org/wiki/Queueing_theory

    In 1909, Agner Krarup Erlang, a Danish engineer who worked for the Copenhagen Telephone Exchange, published the first paper on what would now be called queueing theory. [9] [10] [11] He modeled the number of telephone calls arriving at an exchange by a Poisson process and solved the M/D/1 queue in 1917 and M/D/k queueing model in 1920. [12]

  9. Agner Krarup Erlang - Wikipedia

    en.wikipedia.org/wiki/Agner_Krarup_Erlang

    Agner Krarup Erlang (1 January 1878 – 3 February 1929) was a Danish mathematician, statistician and engineer, who invented the fields of traffic engineering [2] [3] and queueing theory. [ 3 ] Erlang's 1909 paper, and subsequent papers over the decades, are regarded as containing some of most important concepts and techniques for queueing theory.