Web Technologies

WebRTC in Real-World Apps WebRTC brings real-time audio, video, and data directly in the browser. It works well for simple calls, but real apps need more: signaling, servers, and a plan for reliability. This guide covers practical patterns and common decisions. In practice, a WebRTC app uses getUserMedia to capture media, an RTCPeerConnection to transport it, and a signaling channel to exchange offers, answers, and ICE candidates. The media path runs in the browser; signaling is your responsibility and should be robust and private. ...

Real Time Communications with WebRTC Real Time Communications with WebRTC explains how browsers can send audio, video, and data directly, with help from signaling when needed. It focuses on practical ideas you can use to build simple, reliable experiences for users around the world. How WebRTC Works Signaling to exchange offers and ICE candidates. Negotiation creates a direct or relay path for media and data. NAT traversal uses ICE with STUN and, if required, TURN servers. Media streams travel through RTCPeerConnection; RTCDataChannel can carry text or files. Core Components RTCPeerConnection handles the network path, while getUserMedia captures local media. RTCDataChannel enables non-media data. A signaling server shares session descriptions and candidates but does not move media. STUN and TURN help when peers are behind firewalls. ...

VoIP and WebRTC: Real-Time Communication in Practice VoIP and WebRTC power real-time voice and video across networks. VoIP is the classic approach used by many business phone systems, often signaling with SIP to connect calls over IP. WebRTC is the modern, browser-native option that lets people talk and share from a web page without plugins. Both aim for smooth, natural conversations, but they meet in different places on the tech map. ...

Communication Protocols: TCP UDP HTTP and More Protocols are the rules that let devices talk across networks. They sit between software and the network, shaping how data moves and how mistakes are handled. In practice, TCP, UDP and HTTP illustrate core ideas: reliable delivery, speed, and easy access to web services. TCP is connection-oriented and reliable. It starts with a handshake to establish a path, then ensures data arrives in order with acknowledgments. If a packet is lost, TCP retransmits. This makes it ideal for file transfers, email, and loading web pages where accuracy matters, even on imperfect networks. The trade-off is extra overhead and some delay. ...

VoIP and WebRTC for real time communication VoIP and WebRTC are powerful tools for real time communication. VoIP is the broader idea of sending voice over IP networks. WebRTC brings that same idea directly into browsers and apps, with built-in media capture, encoding, and secure transport. Together they let people talk, see each other, and share ideas across devices and locations. In WebRTC, two peers negotiate a direct connection using signaling—your server helps exchange messages. The actual media travels over a peer connection, with ICE locating a workable route. If direct paths are blocked, STUN and TURN servers help find another route. You usually pair WebRTC with a signaling layer and, for larger setups, a media server for recording or multi‑party calls. This setup works across desktops, tablets, and phones, even behind firewalls. ...

Video Streaming Technologies and Content Delivery People watch video on phones, tablets, and TVs. Behind this everyday activity are many ideas that keep video smooth, appealing, and affordable. This article explains the main techniques in plain language. Streaming means sending small pieces of video over the internet so the player can start soon and adjust quality as the network changes. How streaming works today A video is encoded into a source format, then broken into small chunks. A manifest file lists the chunks and shows different quality levels. The player requests chunks one by one, switching to a higher or lower quality based on speed and stability. This process keeps the video playable even on slow networks. ...

VoIP and WebRTC for Real Time Communication VoIP and WebRTC are two pillars of modern real-time communication. VoIP, or voice over IP, covers calls routed over the internet using signaling like SIP, codecs such as G.711 or Opus, and servers that help locate peers. WebRTC is a browser technology that lets you capture audio and video, send it to peers, and even share data—without plugins. Together, they let apps run voice and video anywhere, from a desk app to a smartphone browser. ...

VoIP and WebRTC Real-Time Communication Online Real-time communication online relies on VoIP and WebRTC. Both let you share voice, video, and data over the internet, but they suit different goals. Understanding their strengths helps you choose the right tool. VoIP is the traditional route for phone calls over IP networks. It uses servers to route calls and signaling protocols such as SIP. VoIP can connect desk phones, softphones on a computer, and gateways to the public telephone network. It is trusted for business lines, call routing, and voicemail features. ...

WebRTC Case Studies: Real-Time Communication Apps WebRTC makes real-time audio and video possible directly in the browser, with no plugins. Real projects mix signaling, NAT traversal, and optional media servers to handle more users and tougher networks. The following case studies show practical choices and trade-offs that teams face daily. Case Study: Family Video Chat A small team built a family chat app for two to four people. For one-to-one calls, they used a direct peer-to-peer path to keep latency low and avoid extra servers. When a second or third person joined, they switched to a selective forwarding unit (SFU) to forward media streams and reduce bandwidth at each participant. Signaling ran over WebSocket, with public STUN servers during testing and TURN servers for restricted networks in production. Privacy and encryption (DTLS-SRTP) were maintained along the media path, and the UI emphasized simplicity so users focused on talking, not on setup. ...