How to Make Free Video and Audio Calls on X (Twitter) X now lets all users make calls for free, but its service is still far behind competitors like WhatsApp.

Recently, X added the ability for all users to make free audio and video calls. But before you make a call, familiarize yourself with how it works.

Most people communicating on the internet are using SIP calling. Here’s how to make free SIP calls — and when you shouldn’t.