I found this press release from 6 days ago from a company called Desktop Alert stating that they received certification from DISA (Defense Information Systems Agency) for their software that allows activation of the giant voice platform from a web browser.
From the press press release: "Now, using the DTA GVP DISA Certified Module a Colonel for instance; can launch Giant Voice Scenario with a double click of an icon from our mobile app or a web browser. When lives are at stake, seconds count," said Howard Ryan, Founder Desktop Alert Inc."
Giant Voice is used for mass military notifications https://www.americansignal.com/giant-voice-military-mass-notification-systems/
If you recall, just before Trump was banned from Twitter he tweeted: "The 75,000,000 great American Patriots who voted for me, AMERICA FIRST, and MAKE AMERICA GREAT AGAIN, will have a GIANT VOICE long into the future. They will not be disrespected or treated unfairly in any way, shape or form!!!"