Using Fortnite payphones to accept a quest is easy, once you’ve found one using the above map. Simply approach the ringing unit and follow the Payphone prompt to interact with it, then select a character quest from the wheel as you would do when speaking to one of them in person. As with other quests, you don’t need to do anything to ‘turn in’ when you’ve completed it, as you’ll receive your Fortnite gold bars automatically once you’ve met the requirements.