If you’ve ever been about to jump on an important call or conference, and worried that the network where you are may not be up to the task, then it’s probably a good idea for you to check out the PreCall Diagnostic tool. It’s perfect for when you’re outside your organization, on a public network or on 4G.
Once you start the tool, you’ll need to log in with the details of your Skype for Business or Lync 2013 account. Pressing Start Test will, by default, run a two minute test where it will measure the connection quality between your computer and the server to which you’re connecting. In my case, it’s my edge server as I’m at home.
In the example below, you can see the quality was fine at the beginning of the test, but then I saturated my internet connection by adding a large file to my OneDrive folder (always an excellent test!). Jitter and packet loss spiked, and the overall Mean Opinion Score of the call decreased. This would have resulted in a call which was considered relatively poor.
Give it a try and see how your network connection compares.