Android - How can I make my phone/tablet ring remotely without a SIM card?

Bahh! Just found a way to do this! I'm so excited!

First, install AndroidLost from the online Google Play Store.

• this is the app you can use to control/wipe/access info about your lost device, yadayada

Give it a little time to install to your device, then install AndroidLost Jumpstart from the online Google Play Store as well

This app will wake up the registration process on the androidlost app when ever a phone call is made, an SMS received, battery is low, a package is added, removed or changed.

So you have to install an arbitrary app from the Play Store as well to activate the service, but you can then go to androidlost.com to access functions to control your lost device! Including ringing an alarm ;)

I haven't tested this yet, but I will as soon as I can I tested this on my own phone (although the page for Jumpstart only specifies tablets), and it works! It says it will register on SMS or app install, I did both first, and the activation worked. This is an awesome utility.