Your Phoenix 3 is equipped with a microSD memory card slot. If your laptop or personal computer has a slot for that kind of card (Most laptops are so-equipped), you should be able to transfer a music file
The Phoenix 3 is a smartphone. Most smartphones let you store any song found online by tapping and holding your finger on it and selecting 'save.' Once a music file is saved to your media library, all you have to do is, again, touch-and-hold it and choose 'assign' from the drop-down menu.
The LG Phoenix 3 is an Android smartphone and the Android market offers a bunch of free ringtone apps such as MP3 Ringtone Maker, RingDroid (open source) and more.
Learn more about making your own free ringtones
Here are some of the all free ringtones (compatible with your LG Phoenix 3) we offer:
Free 'Unclassified' Ringtones Free Ghost Ringtones Free Ringtones-a-gogo Free Techno Ringtones Hear All Our Free Polyphonic Ringtones