Why isn’t there an option to call someone?
This could be down to a few reasons. The user may not have a phone number on their profile or the user may have turned off their feature to receive calls.
Who can I call on X?
By default you can call users that follow you on X. You can also call users if you are in a user’s contacts and they previously allowed Twitter/X to have access to this.
However, every user can adjust their settings accordingly, so even if a user does follow you on X, this doesn’t guarantee you’ll be able to call them.
