How to Change SMS Alerts for the iPhone
- 1). Tap the "Settings" icon on the home screen.
- 2). Choose "Sounds" from the list of options.
- 3). Tap "New Text Message." A list of six tones will open, and the one that is selected is the current tone selected on the iPhone.
- 4). Preview the alert tones on the list. To preview a tone, just tap its name once. Choose alert tones that buzz, beep or play a high or low tone.
- 5). Tap the alert you have selected a second time to pick it as the text alert. You will see a check mark appear to show you that it was chosen.
- 6). Test the alert. Call a friend and ask her to send you a quick text message to see if the sound you chose plays.
Source...