Teams: #FightCorona – How can I call other people?

Like chat and meetings, calling is one of the core functionalities of Teams. It is important  to understand that Teams supports two types of calling. The first, out of the box, is the ability for you to make and receive voice over IP (VoIP) calls from Teams client to Teams client over the internet. If you - and the person you are calling - use Teams and are connected to the internet over a wi-fi or wired connection - it will work. The second - and which needs add-on licencing - is the ability to make, receive, and transfer calls to and from landlines and mobile phones which use the public switched telephone network (PSTN). Think of this as you - from your Teams client - calling someone who is walking down the street using a mobile phone, or calling someone's physical phone in their home. Let's jump straight in and explore how we can call people