It is sometimes handy to access another app while you're on a phone call. For example, you might want to look up a movie time or check a shopping list while talking to your spouse. (Note: if the app requires 3G access, this can only be done on an AT&T iPhone.) The iPhone makes this easy to do.
- While you're on a phone conversation, tap the Speaker icon and press the Home button. You will return to the home screen and see a small bar at the top that reads "Touch to return to call" and the time duration of the call.
- Tap any other app to use it while you're on the call. You will be able to keep talking until you return to the call to hang up.
You can use other apps while you're on a call. To return to the Phone app, tap on "Touch to return to call" at the top of the screen.