Start out this iPhone sound process by going into Settings and finding Sound, which is the second block from the top directly above Brightness. Here is where you can change the different sound settings for specific alert situations. At the very top, you can select whether or not you want the iPhone to vibrate when it is on silent. Below that is the Ring section and you can also select whether or not you want it to vibrate when the ringer is up. Below this, you can set the volume of the ring and the type of iPhone Ringtone you want. There is a solid selection of iPhone Ringtones available to you right away, though all of the stock iPhone Ringtones are fairly generic. If you want to get more iPhone Ringtones you are going to have to add them through your iTunes account.