There might be instances when you phone is in silent mode and you are not able to locate it in your house. Remote Ringer is a nice free app for Android which allows you to change your phone mode from silent to normal. Once your phone is in normal mode, you can ring it from another mobile and find it. Remote Ringer needs to be configured before use, you can add one number that you think you can use it to send SMS to your phone in case of emergency.

How to use this app:

1) Define authorized contact number from settings->authorized contact
2) Define your secret password from settings->secret
3) You can press back button and exit from app.

Now put your phone into silent mode. Send an SMS from your registered mobile phone, by writing your secret password in SMS. Result: your phone should be in normal mode and you should receive SMS confirmation.

Download Remote Ringer