Adding contacts to your iPhone is simple and straightforward. Either input the information into the iPhone itself or create contact information in your Mac’s or PC’s address book application. Using your PC or Mac is the easier option.

If you’re using a Mac, you can sync contact information from the Address Book program in OS X, Microsoft Entourage or Yahoo! Address Book. For Windows users, you can use Windows Address Book, Microsoft Outlook and Yahoo! Address Book.

Even though the iPhone shares information with these programs, it still syncs through iTunes when you connect your iPhone to the computer. You can select whether to copy all contacts of just certain groups through the Contacts Tab in iTunes.

To add a contact on the iPhone itself, press the “+” icon in your contacts list. When you next sync your iPhone those contact details will be copied to your computer as well.

The iPhone also conveniently offers the ability to set custom ringtones and images to different contacts so when it rings you know instantly who the caller is just from the ringtone.

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