If you have an iPhone and want to set a ringtone for a number that you don’t know, there are a few things you can do. First, open the Settings app and select the General category. Then, under Ringtone, select the number you want to set as your ringtone. Next, choose the type of sound you want to create: beep, buzz, or tone. Finally, choose how often you want the sound to play: daily or weekly.
