Video call setup allows participants in different locations to communicate with sound and vision. It uses computer networks, mobile networks, and satellites to transmit and receive audio and video data in both point-to-point calls between two people and multipoint calls with three or more participants. Popular video conferencing tools include Skype, Zoom, Cisco Webex, and TeamViewer. Setting up video calls requires a computer, broadband internet connection, webcam, microphone, and speakers.