Wireless carrier ringtones
Cell phones are usually set to the default ringtone when purchased. Wireless providers offer other ringtones on the phone and for download, but most may require a one-time purchase. Use the apps on your phone or go online to browse the selection.
Homemade Ringtones
Most cell phones include a voice recorder that can be used to make ringtones sound. An MP3 file on your computer can also be edited to highlight your favorite potion through a free audio program, such as Audacity or Windows Sound Recorder. Send these files to yourself or others as attachments to a text message and specify the received sound as a ringtone using your preferences menu.
Where can I download ringtones?
There are many websites and services that allow users to download ringtones for their mobile phones. If your service provider doesn't provide additional ringtones, you can do an Internet search for "ringtones" to find download sites. An example of a website with hundreds of free MP3, WAV and MIDI ringtones suoneriegratis
How to convert ringtones?
There are many adapters available for different phones. Usually, cell phone manufacturers provide adapters to change ringtones from one type to another. If your carrier or cell phone manufacturer does not offer this service, do a suonerie android search on the Internet for "ringtone converter".