4 ms·
I did something like this 10 years ago. I had a 3G modem with a SIM card and it allowed more than the regular SMS app on your phone. Obviously I didn't have a w
by OptionOfT 2y ago
I did something like this 10 years ago. I had a 3G modem with a SIM card and it allowed more than the regular SMS app on your phone. Obviously I didn't have a whole app, just a simple CLI.
For example, you could send class 0 SMS (flash) with it. The kind of SMS that shows up on your screen, and all you can do is click OK, and it just disappears.
https://stackoverflow.com/questions/5557135/sending-fullscreen-disappearing-smss-to-an-iphone https://stackoverflow.com/questions/5557135/sending-fullscre...
- jdthedisciple 2y agoWould this still be possible now? Especially sending class 0 SMS? Or has something fundamentally changed so makes no sense to bother trying
- jjeaff 2y agoIt is definitely still possible to receive class 0 sms, because I believe that is what you are getting in the US when you get an amber alert or other emergency warning. As far as I can tell, all US carriers restrict the sending of these to just themselves (or official gov sent through them). Otherwise you can imagine the abuse potential.