Free Erlang traffic calculators The world's first online Erlang traffic calculators
Telecom Traffic Online
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erlang calculators - free

This site contains online resources to assist the global network professional with telecommunications traffic design and analysis. Whether you design PBX networks or international carrier networks, we hope this site will help you.

  • VoIP softswitch

    DUAL Softswitch is a complete Voice over IP switching and billing solution.  Flat monthly rate.

    Web control panels; Least Cost Routing; Excel tariff uploads; SIP and H323 support.

    H323 SIP softswitch >>

Recommended software
A-Z termination using H.323 and SIP
A-Z termination

Erlang software

We provide a range of software products to assist in the design and analysis of global voice networks, including Voice over IP support. Prices start at just 99 US Dollars.  Our product range includes basic Windows calculators for performing traffic and VoIP bandwidth calculations; tools to assist in the analysis of call centres and an Erlang add-in for Microsoft Excel (Erlang for Excel) that allows Erlang calculations to be performed within Excel workbooks.
  • Erlang for Excel

    An Add-In for Microsoft Excel that lets you use Erlang B and C functions in your own Excel spreadsheets.

    The ultimate in Erlang traffic modelling flexibility and data sharing.

  • 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.

  • 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.

  • VoIP Lite

    Our entry level VoIP calculator allowing you to easily calculate your Voice over IP bandwidth requirements.

    Available for immediate download at only 99 US Dollars.

  • VoIP Select

    Design and use your own VoIP calculators using drag and drop techniques.

    We used this software to design our own VoIP calling service.  Now, we offer it for everyone to use.

  • Westplan

    Simplifies the complicated design process involved in creating effective voice networks.

    Support both traditional circuit switching techniques and Voice over IP.

Free Erlang calculators

Our free Online Erlang Traffic Calculators can be used now to work out the number of lines required in a trunk group, and to assist in call centre analysis. They include tools for Erlang B, Extended Erlang B, Erlang C, Engset and Voice over IP.

H.323 and SIP softswitch

DUAL Softswitch is our VoIP softswitch and billing system.  Hosted on our own servers in London, DUAL Softswitch manages your least cost routing and online billing requirements, leaving you free to concentrate on building your VoIP termination, call shop or consumer VoIP business.

Internet Telephony

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

Telecom discussion groups

Share ideas on our four discussion groups covering Telecommunications Design, Voice over IP and Call Center operations. Your article will appear as soon as it is submitted. You can reply to other articles to form threaded newsgroups.

Here are the last three messages posted to our most popular forum.  Click here to join in now.

Author Subject Date Message (part)
Westbay Engineers Ltd. Hosted VoIP softswitch 3 May 2010 Complete VoIP switching and billing platform, hosted on our servers in London...
felix ayah NOKIA - FLEXI BTS (7745 ALARM ID) 12 Mar 2010 i apprecat your techincial sir i have one more quation with is the defrence betweensCDMA GSM mobile network?that is my m...
Slims MCS in data signalisation 12 Mar 2010 Hello Pix, What's the MCS used for signalisation?Is it MCS1??...

Our customers and what they say about us

We are proud to have satisfied customers from around the globe.  Our customers vary in size from one man consultancy businesses to some of the largest telecommunications carriers in the World.  Find out who they are, and what they think of our products and service.
AT&T British Telecom Cisco Microsoft Corporation United Nations
Intel Corporation AOL Telstra Ford Motor Company IBM
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Last modified: 03 February 2010

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