how do i personalize a ringtone?

i have a motorazr v3 and i want to set a ringtone so when a specific person calls thats the ringtone i hear is this possible? if so how do i do it?

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› See More: how do i personalize a ringtone?

Yes, go to you phone book...
and edit a contact's info make sure that the entry is stored to the phone
if not change it.... and then you should see an option that says "Ringer ID" and there you go
change that to whatever ring tone your heart desires