X, the social platform formerly known as Twitter, is rolling out audio and video calls. This is according to a post Wednesday by owner Elon Musk.

Several users on the platform have received a notification when opening the app, stating: “Audio and video calls are here!”

There’s also a new “Enable audio and video calling” toggle within the app’s settings, which says you can “turn the feature on and then select who you’re comfortable using it with.” It includes options to allow audio and video calls from only people in your address book, people you follow, verified users, or all three. You can then make a call by opening a DM with another user, selecting the phone icon in the top right corner of the screen, and choosing audio or video call.

Meanwhile, many users responded to Musk’s post saying they did not see the feature in their app, which was also not visible in a version tested by AFP.

The tycoon publicized in August that voice and video calls were in the works at X in what was seen as a step towards turning the former Twitter into an “everything app.”

The calling features would work on iOS, Android, Mac and PC systems, and no phone number would be needed, he said at the time.

“X is the effective global address book,” the billionaire added.

Musk in July rebranded Twitter as X, saying it would become an “everything app” inspired by China’s WeChat that would allow users to socialize as well as handle their finances.

Since Musk bought Twitter last October, the platform’s advertising business has collapsed as marketers soured on his management style and mass firings that gutted content moderation.