Around when the Amber Alert came out here in Toronto, Ontario, I received a text message from #CMAS#CMASALL with the contents of the alert. I'm unable to respond to the sender and I don't think I got a notification that it arrived. From what I understand CMAS stands for "Commercial Mobile Alert System" or "Cellular Messaging Alert System", but I'm not sure. I also found the website http://www.cmasalert.com/ and thinking that maybe their software is used to send the alerts. My question is simply: What does CMAS in #CMAS#CMASALL stand for?