How To Setup Tunerless Dvr With Satellite And Cable Out Of Wall How Do I Setup A Certain Song To My Droid Eris Phone?

How do I setup a certain song to my droid eris phone? - how to setup tunerless dvr with satellite and cable out of wall

when people call my cell phone HTC eris droids, say it is a symphonic song playing while waiting for my answer. How do I add my own song you play?