Analyst Research Telecommunications/Mobile/Networking Communications Services Providers
This book takes you from the basics of file-sharing, organizing teams, and using video to must-have insights into less obvious functionality, such as posting the same message to multiple channels, muffling background noise (useful if you're working from home!), and choosing more than one feed to concentrate on when video-conferencing (allowing you to pay attention to the speaker and your team members at the same time).
