Useful in cases like.. 1. You want to search lost phone when device in Mute mode. 2. Yiur Family member want to call you when you sleep or elseware, and they want Urgent contact to you. But in family member case they know yoru SMS command than it will be helpful.
If
New SMS received matches search
This Trigger fires every time you receive an SMS on your Android device that matches a search you specify.
Fewer details
Explore more great ways to automate Android SMS and Android Device