Facebook and Microsoft muscle in on Zoom video-call boom

Google also aims to be part of rise in teleconferencing during coronavirus crisisCoronavirus – latest updatesSee all our coronavirus coverageZoom may be booming as the global coronavirus lockdown moves work and social life to cyberspace but deep-pocketed rivals including Microsoft, Google and Facebook are taking aim as video conferencing becomes a staple of daily life.On Tuesday, Zoom, which has been catapulted from a relatively unknown video service to a household name during the pandemic