Asterisk Manager Interface (AMI): The Complete Developer Guide

Last updated: March 2026 | Reading time: ~24 minutes The Asterisk Manager Interface is a TCP socket API that lets you control Asterisk programmatically. Originate calls. Monitor channels. Transfer calls. Get real-time events for every call that enters, bridges, and hangs up on your system. If you're building anything on top of Asterisk — a CRM integration, a wallboard, a click-to-call feature, a custom reporting tool — AMI is probably how you're going to do it. VICIdial itself uses AMI heavily. The agent screen, the real-time report, the auto-dial engine — they all talk to Asterisk through AMI. This guide covers everything from initial setup to production-grade integrations. No fluff. Code that works. AMI vs. ARI vs. AGI: Which One Do You Need? Asterisk has three interfaces for external programs. People confuse them constantly. AMI (Manager Interface) — TCP socket on port 5038. Send commands, receive events. Best for: monitoring, originating calls, managing channels, building dashboard