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Free Skype for Business Online Network Assessment Tool from Microsoft, Hands On

Microsoft have just released a Skype for Business Network Assessment Tool; you can get the free from the public download site here:

version:6.0.8970.161     FileName:

The Skype for Business Network Assessment Tool provides the ability to perform a simple test of network performance to determine how well the network would perform for a Skype for Business Online call. It’s aimed specifically at testing your connectivity to Skype for Business Online

The tool tests the connection to Microsoft Network Edge by streaming a set of packets to the nearest edge site and back for approximately 20s for a configured number of iterations. The tool reports:

    • Packet loss
    • Jitter
    • Round-trip latency
    • Reorder packet percentage

It runs on Windows 7 or later.

The tool uses the same real-time media technology as a Skype for Business Online client.

The results from using this tool can be used as part of a network assessment to determine if a network connection meets the targets

Network Performance requirements from a Skype for Business client to Microsoft Network Edge


Network performance requirements from your network Edge to Microsoft Network Edge


Full details of targets here, lots of great detail:


It’s a simple exe command line tool with a .config file



The results get output in a Tab Separated Values file (looks like my hotel wifi is not the best)


Nicely, there is then a results Analyser exe to do the maths for you :-)



Configuration file contents:


Testing from my home fibre connection, works fine (better than the hotel wifi above :-) ):

Misc Notes:

  • You can change the Audio File that is played
  • You can change the file delimiter from a Tab to a comma, but the resultsanalyzer.exe will not parse the file unless you also manually define the delimiter
  • The Relay IP in the config file is an Anycast IP, it will route to the nearest ingress point on the Microsoft network from wherever you run the tool

About the author

Tom Arbuthnot

A Microsoft MVP and Microsoft Certified Master, Tom Arbuthnot is Principal Solutions Architect at Microsoft Collaboration specialists Modality Systems.

Tom stays up to date with industry developments and shares news and his opinions on his blog, Microsoft Teams Podcast and email list. He is a regular speaker at events around the world.


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Tom Talks Microsoft Teams and Microsoft 365 Collaboration news and opinions