First there was Skype, a well-liked app for instant messaging, video chat, and voice calls. Then Microsoft bought the company in 2011, continuing to offer it as a consumer product along with Lync as a business application. But last year Microsoft announced it would drop Lync in favor of Skype for Business, which would combine features of both Lync and Skype.
Today, many people are confused with what is actually available and how it works. After all, there are two Skype services (the free consumer version and the paid-for online or on-premises version). There are two client types available as well.
Let’s break them down: