So first of all I have checked sounds settings, tested normal Skype client, updated Skype for Business, uninstalled and re-installed it, etc. and my microphone and speaker are working as expected in regular Skype client and in general.

But when I join a meeting with Skype for Business, I can't hear anyone speak and they don't seem to see me as a participant in the conversation. My mic is muted right away and the button is disabled. I have tested meetings created by my self, and ones created by others. I also seem to being having troubles calling others (one to one). It gives me the classic sound from Skype when calling but the others are not receiving the call. My college then tried to call me and that worked fine, calls and sound was fine.

I just experienced that when joining the meeting my colleague says I have a status as "Not in the call" when he howers over my icon and after waiting a bit I actually got a message from Skype saying that the call could not be made. So maybe when I am joining the meeting I am actually not with the voice call - and I cant make calls directly to others.

Making calls/joining meetings from my windows laptop works.. but not from my macbook.

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Image from my colleague's Skype

Any ideas how to resolve this?

I am running Skype for Business version 16.26.19 on a 15" 2018 MacBook Pro running macOS Mojave.

  • "Looks like you're the only one on the call" would hint at network/connectivity issues, not the mic at all.
    – Tetsujin
    Commented May 3, 2019 at 8:01
  • @tetsujin It's a bit hard to explain but in the Skype window of my college it showed me in the list of participants but not in the big window where you see the profile picture of the ones talking. I dont seem to having Network issues. The problem have been for days and from home and on work. Commented May 3, 2019 at 8:18

1 Answer 1


Apparently (according to IT) a restart of the Exchange server and the Skype server (in the right order) was enough to solve the issue.

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