Do your friends sound the same? How to customise your iPhone ringtone

It's possible to assign a unique ringtone to each of your saved contacts so that you can tell just by listening who's giving you a ring. — dpa

Maybe you want to know who's calling without having to check your phone, or maybe you hate hearing the same ringtone all the time: Either way, it's possible to assign each of the contacts saved in your iPhone with their own unique sound. Here's how it's done:

- Open up your "Contacts" and pick out the number you'd like to customise. Tap on that contact.