A user has built a conference call system using Twilio Voice Conference, allowing multiple people to communicate with each other from a single phone call. The system uses a web application written in Python and the Flask framework to initiate conferences and add participants automatically. When an incoming call arrives at the Twilio number, it is redirected to the web application, which starts a conference and adds participants based on predefined settings. The system provides seamless control for the end user, allowing them to manage participants and events during the conference. The application can be tested by calling the Twilio number with the webhook URL and verifying that all participants are added to the conference. The system has been successfully implemented for a family member, allowing them to communicate with multiple people from a single phone call, and it can be extended with additional features such as recording conversations or muting participants.