Free Erlang traffic calculators

The world's first online Erlang traffic calculators

Telecom Traffic Online
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erlang calculators - free

Easy-to-use software tools to help you design analyse call centres and design telephone networks.
Our software has been helping industry specialists since 1996, and prices start at just 49 US Dollars.

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Add-ins for Microsoft Excel


Using Microsoft Excel to create your modelling tools means you can tailor your workbooks to meet your exact requirement with features such as pivot tables, data importing, charting and conditional formatting. If you have the expertise to design your own Excel based tools, then our two add-ins can effortlessly bring Erlang functionality into your workflow. Our Excel add-ins are quick to install and work with all Windows versions of Excel and include example calculators and tables to demostrate their use.

  • CC-Excel adds nine new functions to Excel to help you model your call centre's performance and staffing requirements.
  • Erlang for Excel adds eight functions adding Erlang B, Extended Erlang B and Erlang C functionality.

Erlang apps for Windows

  • Erlang Calculators

    An easy to use and fast Windows product offering Erlang B, Extended Erlang B, Erlang C and Call Minutes calculators.

    Four products in one, plus Erlang for Excel free.

  • VoIP Calculator

    Our basic Voice over IP bandwidth calculator for Windows.

    The app comprises a single window with tabs to select between two bandwidth calculators.

  • Ansapoint

    Easily estimate the number of agents and trunks required at your call centre.

    Handles 15, 30 or 60 minute analytical intervals and includes reporting and graphing features.

If you prefer pre-built applications, our three Windows Erlang software products can perform instant calculations to help you with your telecom network design, call center analysis and VoIP bandwidth calculation tasks.

Free Erlang calculators

You can use our free Online Erlang Traffic Calculators to work out the number of lines required in a trunk group, and to assist in call centre analysis. They include tools for call center calculations (Erlang C), Erlang B, Extended Erlang B, Engset and Voice over IP.

Internet Telephony

We offer a range of internet telephony products, providing VoIP services to business, wholesale and consumer customers:

Telecom Design Forum

Here are the latest messages posted by fellow telecommunications and call centre professionals, sharing their thoughts and ideas on telecommunications design, Voice over IP and call center operations.

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Author Subject Date Message (part)
Prashant ABIS PATH FAULT on ERICSSON RBS 25 Jul 2017 Abis...
Parsa48 Uplink quality poor 24 Jul 2017 I have a lot uplink rx quality in 3G ran Ericsson please someone guide me to solve this problem...
KAZEEM AZEEZ Rx path imbalance alarm 20 Jul 2017 I want a permanent resolution to my rx path imbalance alarm on my RBS 2206. Antenna, feeder cable and jumper cables hav...

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Last modified: 17 May 2017

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