How do I change my ringing tone for the people ringing me?

I downloaded a song that i though was a ring tone. Infact it plays on other peoples phones when they ring me. I would like to change it to just normal ring tone that people hear when they ring me. My phone is a Nokia 6220c-1.How do I change my ringing tone for the people ringing me?go to your contacts list choose the contact u want to change and click on options you'll find it there somewhereHow do I change my ringing tone for the people ringing me?only your provider can set your ringback tone, there is a fee