I don't know if there's an app for this or not, but I'm looking for something that does the following: A number (or code) is texted to your phone number, and if on vibrate it automatically turns on the sound for the next notification to be heard. Example: You have your phone on vibrate/silent. You accidentally leave it somewhere and you "forget" where you put it. You ask to use your friend's phone, or ask them, to text your phone using a certain code, and it will then turn the sound on, so when you call it, you can hear it and find it easier (unless of course the battery is dead). Is there an app for that somewhere? Or am I just negligent to the fact of impossibility?