Two of the most popular messaging platforms are Viber and WhatsApp. Both apps offer free messaging, voice calls, and video calls through the internet.
Many of the apps you use every day, from Netflix and Spotify to WhatsApp and Zoom, rely on the same underlying technology: OTT or “over-the-top” services.
The biggest misconception is the idea that toll-free equals free everywhere. In reality, toll-free calling is governed by national telecom rules, carrier agreements, and geographic boundaries. Once a call crosses borders, the rules change.