"the "ding" sound that plays whenever you receive a text message? iOS provides a one-stop shop for changing alert sounds for built-in apps and features.

Go to the Settings app, then return to the main Settings screen if you aren't there already. Next, tap Sounds. Here you can change vibrate-on-ring settings, alert and ringer volume, and also specific alert tones. Tap a tone type to change it, and then tap a new alert sound to select that tone.

You can also change whether your phone vibrates for a given"

http://www.macgasm.net/2015/01/16/30-days-of-ios-tips-change-you-default-alert-sounds-and-ringtone/