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VoIP Lite

VoIP Calculator is our Voice over IP bandwidth calculator for Windows. It can help you work out how much bandwidth you need to provide through an IP based network if you know the number of voice circuits required or the traffic volumes offered to the system under analysis.

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Introduction to VoIP Calculator

VoIP Calculator is our Voice over IP bandwidth calculator for Windows, which we are offering for $49 (USD). The programme comprises a single window, with tabs to select between the Lines and IP Bandwidth Calculator and the Erlangs and IP Bandwidth Calculator.

The calculators work on all versions of Windows are available for 49 US Dollars for immediate download. Click here to find out how to purchase.

Lines and IP Bandwidth Calculator

The Lines and IP Bandwidth Calculator calculates the bandwidth that should be provided through an IP-based network for a given number of voice channels. Reverse calculations are also possible to calculate the number of voice paths that can be derived from an IP based connection of a known bandwidth. The calculator works up to 100,000 Lines and 20,000 Mbps!
The Lines and IP Bandwidth Calculator
"How much bandwidth in Mbps should I provide through an IP based network to carry 600 voice paths?  I am using the G.729A codec.  I am using cRTP header compression to reduce the packet header to 4 octets and one packet is being transmitted in each direction every 20 milliseconds."  Answer - 5.76Mbps

More information is available in the illustrated User Guide and the technical specification below.

Try an online version of this calculator to see how it works.

Erlangs and IP Bandwidth Calculator

The Erlangs and IP Bandwidth Calculator calculates the bandwidth that should be provided through an IP-based network to transport a known traffic volume in Erlangs or CCS.  Reverse calculations are also possible to calculate the busy hour traffic that can be offered to a group of lines derived from an IP link of a known bandwidth. The calculator works up to 25,000 Erlangs and 20,000 Mbps!
The Erlangs and IP Bandwidth Calculator
How much bandwidth in Mbps should I provide through an IP based network to carry if 522.1 Erlangs of traffic is offered to the system in its busiest hour.  I am using the G.729A codec.  I am using cRTP header compression to reduce the packet header to 2 octets and one packet is being transmitted in each direction every 30 milliseconds.  I accept that 1% of calls will be blocked.  Answer - 4.686Mbps

More information is available in the illustrated User Guide and the technical specification below.

Try an online version of this calculator to see how it works.

Documentation

VoIP Calculator is provided with a fully formatted and illustrated User Guide which is distributed electronically in the form of Web pages. This User Guide explains how to use the calculators and offers many examples of their use. There is also a Windows help system installed with the software.

You can view the illustrated User Guide now to find out more about how the calculator works and study example calculations.

Purchasing VoIP Calculator

All major credit cards accepted

VoIP Calculator, which comprises the two calculators described above, costs 49 US Dollars for a single user licence. You can pay using any major credit card.

Transactions are with Westbay Engineers Ltd. and are handled on our secure server. You can have the software running on your PC five minutes from now!)

Please choose a licence type

Please take a moment to consider the type of licence you require. Your honesty in this matter helps us to continue developing our products. Software piracy is illegal.
A single user licence allows you to install the software on one PC.
Click here to purchase a single user licence ($49.00)
A site licence allows you to install the software on any PCs in one building, owned by the licensed company.
Click here to purchase a site licence ($395.00)
A global licence allows you to install the software on any of your company's PCs throughout the world.
Click here to purchase a global licence ($795.00)
Alternatively, if you would prefer to pay by cheque or money wire, please write to contact us.

Technical Specification

  Lines and IP Bandwidth Erlangs and IP Bandwidth
Operating system All 32 and 64 bit versions of Microsoft Windows.
Operational limits 0 - 20,000Mbps
0 - 100,000 lines
0 - 25,000 Erlangs
0 - 900,000 CCS
Blocking 0.001 - 0.500
0 - 20,000Mbps
Codecs G.711, G.723.1, G.726, G.728 and G.729A.
IP packet intervals 10 ms - 90 ms.
RTP header compression cRTP 2 and 4 octets (optional).
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Last modified: 16 June 2017

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