Cell phone ring during the Three Weeks

Q: When I hear music as the ring from someone's cell phone during the Three Weeks, should I tell him to change it to a regular ring?
A: You cannot give someone else orders. You should certainly change your ring to a regular ring if you have a musical ring. His musical ring is not so bad since it is short and you hear it, but you are not listening to it. In Halachah, this is not called listening to music, but a benefit that comes to a person against his will (Pesachim 25). It is therefore no problem.