Before AI-powered phone agents, cloud contact centers, and Unified Communications began transforming the telecommunications industry, one technology fundamentally changed how people made phone calls: Voice over Internet Protocol. In the previous article, we explored PSTN, the traditional telephone network that connected the world for more than a century. The next logical step in our series is answering another essential question: What is VoIP?
We created this new article series to explain telecommunications in plain English. Each article answers a common “What is…” question without unnecessary jargon. The goal is to help business owners, IT professionals, telecom engineers, and anyone curious about communications understand how modern phone systems work. We begin at the very foundation of telecommunications: What is PSTN?
In the previous article, we explored PSTN, the foundation of global voice communication and the system that defined telephony for over a century. While this legacy infrastructure enabled reliable connectivity, it also exposed the limitations of circuit-switched communication in a rapidly evolving digital landscape. To move forward, it becomes essential to answer a key question: what is SIP, and how does it enable modern, flexible communication over IP networks?
Voice AI is transforming how humans interact with machines, evolving from basic text-to-speech (TTS) systems to sophisticated neural networks capable of expressive, human-like communication. As speech synthesis becomes more natural and accessible, industries worldwide are reimagining customer service, education, healthcare, and creative content.
Call waiting offers a convenient way to manage incoming calls. It’s a telephony feature that allows us to be notified of another call while already engaged in a conversation. In this article, we will delve into the meaning of call waiting. Next, we explore its functionality and benefits, learn how to use it effectively, troubleshoot any issues that may arise. We then discuss the future of this technology.
Speech-to-text (STT) technology first emerged as an assistive solution, designed to help individuals with disabilities communicate and interact more easily. Over time, it evolved into a mainstream productivity tool that benefits virtually everyone. Today, capabilities such as voice dictation, real-time captioning, and automated transcription are embedded into smartphones and software platforms.
Text-to-speech (TTS) technology is used daily by many people, even if they don’t know the term. In the United States, 100 million individuals own at least one smart speaker like Amazon Echo or Google Nest (source: Market.us, 2024). Around 63 percent of U.S. adults (source: BloggersPassion, 2025) use voice-powered assistants like Amazon Alexa, Apple Siri, or Google Assistant. These virtual helpers rely on TTS to answer questions, play music, or control smart devices.
The way we work has changed dramatically in recent years. Traditional office-based roles are no longer the only option. Instead, many companies now offer hybrid work, a flexible model that blends remote and in-office work. This adoption raises important questions about the hybrid job meaning and exactly what is a hybrid job in practice.
In today’s digital age, communication has undergone a remarkable transformation. One of the key technologies driving this change is IP telephony, also referred to as internet telephony or Voice over IP (VoIP). This innovative approach allows voice and multimedia sessions to be transmitted over the internet, providing a more efficient, cost-effective, and versatile alternative to traditional telephone systems.
In the world of business communication, call parking is a concept that plays a crucial role in ensuring efficient and effective handling of phone calls. By temporarily parking a call, businesses can easily transfer and retrieve calls between different extensions without disrupting the flow of communication.
