When you use Voice over IP, a technology that sends phone calls over the internet instead of traditional phone lines. Also known as IP telephony, it lets you make cheaper, clearer calls anywhere in the world—whether you’re calling family abroad or running a small business. In June 2025, the most common questions on IntCalling centered around how to make this work reliably at home and in small offices. People weren’t just curious—they were tired of overpaying for international minutes and dealing with dropped calls.
Behind every successful VoIP setup is a solid SIP setup, the protocol that connects your phone to the internet and routes calls. Also known as Session Initiation Protocol, it’s the engine that makes VoIP work. Without proper SIP configuration, even the best internet connection won’t help. That’s why most of the posts this month walked readers through step-by-step SIP configurations for routers, phones, and softphones—no jargon, no fluff. You’ll find real examples: how one user fixed echo issues on their Grandstream phone, or how another saved $80 a month by switching from AT&T to a VoIP provider that routes calls through local gateways. And it’s not just about the tech. Call quality, how clear and stable your voice sounds during a call. Also known as audio performance, it depends on your bandwidth, network congestion, and QoS settings. Many posts showed how to prioritize VoIP traffic on home routers using simple settings most people never touch. Whether you’re using a smartphone app or a desk phone, these fixes work the same.
What you’ll find in this archive isn’t theory. It’s what people actually did. From setting up free softphones for remote teams to choosing a provider that doesn’t throttle international calls, every post here solves a real problem. No marketing spin. No vague advice. Just what works.