I was looking through the market, but so many results come up, it makes it a bit difficult to find the program that is needed. Basically, I if a certain SMS is received from a couple of numbers - I would like the Dell Streak 7 to ring as loud as possible (even if the phone is muted). Since we are getting into the tornado season, we are signed up to receive notifications via text and phone calls. And we are also signed up with the local sheriff department as well. Is there an app for this?