I want to reboot targeted phone by SMS. Is it possible? How can we implement this?
If you mean by having an app waiting for a specific text, then only on a rooted phone.
Ranhiru's link tells you how to get the text without it giving a text notification. If your phone isn't rooted, then programs don't have access to functions like that. If it's rooted, I can't say exactly how to do it, I haven't tried yet, but have a look for the source of apps like quickboot, a lot of them have it all publically available on code.google.com