A walkthrough of building a missed call notification system using Asterisk's AMI (Asterisk Manager Interface) and Node.js. The setup involves configuring the AMI in manager.conf, setting up SIP user agents, defining a dial plan, and writing a Node.js server that listens for AMI events to detect missed calls. When a missed call is detected via state machine logic (AWAITING_CALL, INCOMING_CALL, IN_CALL), the app uses Twilio's SMS API to send a notification to the user's mobile phone. An Express HTTP server provides a simple web UI for configuring the monitored extension and mobile number.
Table of contents
Configure Demo User Agents in sip.confConfigure Dial Plan in extensions.confSetup Twilio AccountSetup Node.JS HTTP Server and Notifications ServerRun and Test4 Impressions