【實用通訊app】Emergency SMS Alert (ESA)|最夯免費app-綠色工廠好玩App

Emergency SMS Alert (ESA) plays a police siren tone when you receive SMS contains a predefined word of your choice, even when your mobile is Silent.

If you are sleep or in a meeting and set your mobile to silent, you don't have to worry of missing important incoming SMS, just set the "Alarm Word" (As 911, 007, Help, etc.) and share it with your family and coworkers to use it in case of emergency.