If you are connected to your office computer from home via Remote Desktop Connection and want to use Skype for Business, Teams, or Zoom for audio communication from your office computer, be sure to configure the audio settings before you click the Connect button.
Start Remote Desktop Connection on your home computer and click Show Options
Click Local Resources > Remote audio > Settings
Set to Play/Record on this computer, click OK, then Connect to connect to your office computer
In Skype for Business on your office computer, open the Audio Device Settings (Zoom and Teams have similar settings)
Make sure Speaker, Mic, and Ringer are set to Remote Audio and then click Check Call Quality to test your setup