Video Call
A video call lets you have a face-to-face conversation with someone using a camera and microphone on your phone, tablet, or computer.
Instead of just hearing the other person's voice, you can see them in real time. Popular video calling apps include Zoom, FaceTime, Google Meet, and Microsoft Teams. Video calls can be one-on-one or include many people at the same time, making them useful for family catch-ups and work meetings alike.
Video Call, explained at three levels
At home
A video call is like a phone call where you can also see the other person. You just need a device with a camera, a microphone, and an internet connection. Apps like FaceTime or Zoom make it easy to start a call: you either tap a contact or click a link, and you are face-to-face in seconds.
At work
In the workplace, video calls have become the standard way to hold meetings when people are not in the same location. They let remote teams collaborate, share presentations, and read body language in ways that phone calls cannot. Most business video platforms also include features like screen sharing, recording, and virtual backgrounds.
At home
Video calls work by capturing video from your camera and audio from your microphone, compressing that data, and sending it over the internet to the other person's device in real time. The quality depends on your internet speed. A faster connection means smoother video and clearer audio. Most platforms automatically adjust the video quality based on available bandwidth to keep the call stable.
At work
For businesses, video conferencing platforms are evaluated on factors like participant limits, security features, integration with calendars and productivity tools, and compliance with industry regulations. Features like breakout rooms, polling, and whiteboarding support various meeting formats from all-hands meetings to collaborative workshops. Recording and transcription capabilities help teams document decisions and action items.
At home
Video calls rely on real-time communication protocols like WebRTC, which handles peer-to-peer media streams with built-in support for NAT traversal through STUN and TURN servers. Codecs like VP9, H.264, and AV1 balance video quality with bandwidth efficiency, and Selective Forwarding Units allow multi-party calls to scale without requiring each participant to encode separate streams for every other user. Noise cancellation and background blur are often powered by on-device machine learning models.
At work
Enterprise video infrastructure must address network Quality of Service to prioritize video traffic, end-to-end encryption for sensitive meetings, and interoperability between platforms through standards like SIP and H.323. Large-scale deployments may use media server clusters with geographic distribution to minimize latency, along with monitoring dashboards that track call quality metrics such as jitter, packet loss, and round-trip time to diagnose issues proactively.
Real-world examples
At home
Thomas lives in a different city from his parents. Every Sunday evening, he sets up a FaceTime call so his kids can show their grandparents artwork from school and chat face-to-face, keeping the family close despite the distance.
At work
Aisha, a team lead, hosts a weekly Zoom meeting with her remote team spread across three time zones. She shares her screen to walk through project updates and uses breakout rooms for smaller group discussions.
Common confusions
- One common misunderstanding is that you need expensive equipment for video calls. The camera and microphone built into most phones, tablets, and laptops work perfectly fine.
- It's tempting to think video calls use huge amounts of data. Most apps adjust quality to your connection, and a one-hour call typically uses roughly 0.5 to 1.5 gigabytes.
- It's a popular misconception that everyone on the call can see your whole screen. Your camera only shows what is in front of it, and screen sharing is a separate feature you have to turn on deliberately.
For analysts
Video calls are wonderful for staying connected, but a few simple habits make a big difference. Find a quiet spot with decent lighting so others can see and hear you clearly. Mute yourself when you are not talking to cut down on background noise. And if your internet is struggling, turning off your camera can help keep the audio smooth. It is okay to use phone calls or messages when video is not necessary, because not every conversation needs to be face-to-face.
History & origin
The concept of video calling dates back to AT&T's Picturephone demonstration at the 1964 World's Fair, but the technology was far too expensive for everyday use. Skype popularized consumer video calling in the mid-2000s by making it free over the internet; Microsoft retired Skype in 2025 in favour of Teams. The COVID-19 pandemic in 2020 made video calling an essential part of daily life, with Zoom becoming a household name almost overnight.