Cisco's Traffic Analysis document says the Erlang C model is more commonly used for conservative automatic call distributor (ACD) design, to find the number of agents needed.

Checked 2026-09-25

The Erlang C model is more commonly used for conservative automatic call distributor (ACD) design to determine the number of agents needed.
Vendor
Cisco
Product
Cisco IOS VoIP solutions
Subsystem
agent staffing
Deployment
on-premises
Region
not restricted
Release range
document updated 2001-07-02
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Erlang B and Erlang C for voice and contact center sizing: source note erlang-traffic-engineering-erlang-c-acd-conservative. WarmTransfer. https://warmtransfer.net/knowledge/claims/erlang-traffic-engineering-erlang-c-acd-conservative

BibTeX

@misc{warmtransfer-claim-erlang-traffic-engineering-erlang-c-acd-conservative,
  title  = {Erlang B and Erlang C for voice and contact center sizing: source note erlang-traffic-engineering-erlang-c-acd-conservative},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/erlang-traffic-engineering-erlang-c-acd-conservative},
  note   = {Source note erlang-traffic-engineering-erlang-c-acd-conservative, checked 2026-09-25}
}

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