VICIdial: The Complete Guide to Open-Source Call Center Software

Last updated: March 2026 | Reading time: ~26 minutes VICIdial is the most widely deployed open-source contact center platform in the world. Over 14,000 installations. Zero licensing fees. It handles predictive dialing, inbound routing, IVR, blended campaigns, call recording, real-time reporting, and agent management — all through a web browser. If you're reading this, you're probably in one of three situations. You're evaluating VICIdial as an alternative to expensive hosted dialers . You've already installed it and you're trying to figure out what half the settings do. Or you've been running it for years and want to know if you're getting everything out of it. This guide covers all three scenarios. No vendor pitch. Just an honest assessment of what VICIdial is, what it's not, where it shines, and where it'll hurt you if you're not prepared. What VICIdial Actually Is VICIdial is a PHP web application that sits on top of Asterisk (the open-source PBX). Asterisk handles the actual phone