Open the X app on your device.
Navigate to the Direct Message section within the app.
Locate and tap on the Settings icon located at the top right corner of the screen.
In the Settings menu, search for the option labeled "Enable Audio and Video Calling.
Toggle the button next to this option to turn off the feature.
Confirm the action if prompted by the app.
Exit the Settings menu to save your changes. (Image Credit: All Images From