Erlang B and Telephony

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Erlang B estimates the percentage of calls per hour of an average length (duration) that are blocked, given a number of resources (ports) available to handle those calls. This is useful for determining the number of lines needed in telephony applications.
Contributed by: Jim Michael (March 2011)
Open content licensed under CC BY-NC-SA
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"Erlang B and Telephony"
http://demonstrations.wolfram.com/ErlangBAndTelephony/
Wolfram Demonstrations Project
Published: March 7 2011