What Is VoIP? How Voice over Internet Protocol Works

VoIP, or Voice over Internet Protocol, is a technology that carries voice calls over IP networks instead of relying entirely on traditional circuit-switched telephone lines. During a VoIP call, speech is converted into digital data, divided into packets and transmitted across an IP network. At the receiving end, those packets are reconstructed and played back […]

Secure Messaging Software for Financial Services: What Banks and Financial Teams Need in 2026

Financial organizations use messaging systems for two very different purposes. The first is transaction messaging: payment instructions, settlement information, account statements and other structured financial data exchanged between banks, payment networks and market infrastructures. The second is human communication: conversations between employees, departments, fraud teams, compliance specialists, executives and external partners. These two messaging layers […]

Virtual Classroom: How It Works, Key Features and Platform Options

A virtual classroom is a live online learning environment where instructors and learners communicate, study shared content and participate in structured educational activities remotely. It typically combines video and audio communication with tools such as: presentations; screen sharing; chat; whiteboards; polls; breakout groups; hand raising; recordings; attendance or engagement tracking. The important distinction is that […]

Real-Time Communication: Meaning, How It Works and Examples

Real-time communication (RTC) is the exchange of information with little enough delay for people or systems to react while the interaction is still happening. RTC can include text messaging, voice and video calls, screen sharing, presence information, collaborative editing, live customer support, and real-time application data. It is useful whenever immediate feedback matters more than […]

E-Meeting: What It Is, Types and Platforms

An e-meeting, or electronic meeting, is a meeting supported by digital or audiovisual technology. It does not necessarily mean that every participant is remote. An e-meeting may be: fully virtual; hybrid, with people joining both in person and remotely; primarily in person but supported by electronic documents, voting or collaboration; a webcast where a remote […]

Video Teller Machine (VTM): How It Works, Banking Use Cases and Technology

A video teller machine (VTM) is a banking terminal that combines self-service transaction capabilities with real-time video access to a remote bank employee. To a customer, it may look similar to an ATM. The difference appears when the transaction requires human assistance. Instead of walking into a branch and speaking with a teller across a […]

Telepresence Video Conferencing: How It Works and When It Makes Sense

Telepresence video conferencing is a form of video communication designed to make remote participants feel more naturally present in the same meeting space. Unlike standard video conferencing, which mainly focuses on connecting people through reliable audio and video, telepresence coordinates the entire meeting environment: cameras, displays, microphones, speakers, participant positioning, room geometry, lighting and network […]

WebRTC Video Conference: How Browser-Based Meetings Work

A WebRTC video conference allows participants to exchange real-time audio and video through a browser or application without relying on traditional browser plugins. The user experience can be simple: open a meeting link, allow camera and microphone access, and join. Behind that interface, several different systems have to work together: media capture; signaling; session negotiation; […]

Multipoint Video Conferencing: How MCU Architecture Works

A point-to-point video call connects two endpoints. Once three or more locations join the same meeting, the system has to decide how audio and video streams are distributed, where layouts are created, and which component handles media processing. That is the problem multipoint video conferencing solves. An MCU, or Multipoint Control Unit, is one established […]

SIP Video Conferencing: How It Works, Equipment and Platforms

SIP video conferencing uses the Session Initiation Protocol to establish and manage video communication sessions between standards-based endpoints, conference rooms, telephony systems and conferencing platforms. SIP itself normally does not carry the video media. It handles call setup and session control, while audio and video are transported separately through media protocols such as RTP or […]

Communication Technology