Software products

We offer a range of telecoms software products to assist you with the design and analysis of your voice communications networks and call centers.


Model your call center’s staffing and operational performance using Microsoft Excel. CC-Excel introduces nine functions to Excel for estimating staffing requirements and call handling using the Erlang C traffic model. It includes twelve example calculators and a staffing table in a sample workbook. You can use them immediately or expand upon them to create your own call center modelling spreadsheets.

Free upgrades for life on a single computer for a once-only charge of just $99.

“Your software is great, and I would recommend it to anyone. It has been a pleasure doing business with you.”
John McGowan, PROSOFT Inc.

Erlang for Excel

An Add-In for Microsoft Excel or higher that introduces eight new functions to Excel, allowing you to incorporate Erlang B, Extended Erlang B and Erlang C calculations in your own spreadsheets. Packaged with Westbay Traffic Calculators, this provides you with the industry-standard Erlang calculation tools for life.

Free upgrades for life on a single computer for a once-only charge of just $99.

Westbay Traffic Calculators

Packaged with Erlang for Excel, our best-selling telecom software application comprises four Windows calculators for Erlang B and Erlang C. Use them to dimension trunk groups and predict the performance of your help desk or call center agents.

Westbay Traffic Calculators - Erlang B
Westbay Traffic Calculators – Erlang B calculator

Free upgrades for life on a single computer for a once-only charge of just $99.


Software to help you work out how many agents you need at your call center to answer your incoming calls according to service targets you specify. Full charting and printed reports are also offered, making Ansapoint a versatile and flexible forecasting tool. Free upgrades for life.

VoIP Calculator

Telecoms software for VoIP designers, our Voice over IP bandwidth calculator includes two calculators: the Lines and IP Bandwidth Calculator and the Erlangs and IP Bandwidth Calculator. Free upgrades for life.

Our customers

Buy our industry-standard telecoms software and you’ll be in good company. We are the trusted supplier of Erlang tools to the world’s largest companies and governments.