Just hand-on your new Apple iPhone 4 device? Then here it is a simple basic trick to let you know more about your iPhone 4. This time we’ll discuss about how to block and show your caller ID. Personally I realize sometimes you might have a reason why you want to hide your caller ID. So here it is a simple “how to” tutorial.
1. In your home screen >> tap on [Settings] icon
2. Then tap on [Phone] >> [Show My Caller ID] option
3. Now simply toggle the button OFF to hide your caller ID and toggle it ON again to show it.