RingerOn

RingerOn lets you switch your phone from "silent" to "on" by sending it an SMS with a special code you choose.
This means that you can find the phone you misplaced in your house/office/car by calling the phone even if it was set to "silent".
If you share the special code with someone then they will be able to switch the ringer on and alert you even if your phone had been switched to "silent". Handy when they really need to reach you.

It works as follows...
Download the App.
Enter a special code of your choice and activate.
RingerOn is now active.
You can view/change the code whenever you like.
You can deactivate RingerOn if you like.
To change the phone ringer from "silent" to "on" send your phone an SMS with the message RingerOn a space and then your special code.
For example RingerOn 12345
Note the word RingerOn must have a capital on the first R and the O.
That's it. Simple but super handy and you are always in control.