Yes. Are you trying to assign ring tones for specific contacts or just a different ringtone for your phone in general
If you are trying to assign a general ringtone for your phone, you can go to the Settings Menu ----> Sound ---> Phone Ringtone.
If you are trying to assign a certain ringtone to a specific contact, then go to Contacts -----> Select the contact you want and continue holding down the contact for a few seconds. A pop up menu will appear. Select Edit contact, scroll down a bit and you will see a Ringtone option with a pull down box.
Just select the one you want
