Does anyone know if you can set a Ringer ID on the Moto Razr without changing the message alert?

I have a Moto Razr through AT&T and I want to set Ringer ID's for my friends but when I do that it plays the song when they send me a text message. I don't like that. I was specific ringers but I want all the Text messages to play the same thing. I don't like songs form Text alerts, I just like the little chime.