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At IWCE 2022, FirstNet announced a new, significant upgrade to FirstNet (Built with AT&T) that prompted me to write about communications tools for first responders.
One of these tools is actually an upgrade to the network that many of us have been expecting for a long time. This network enhancement makes it possible to send Push-To-Talk (PTT) voice, data, and video to multiple devices simultaneously (multicasting). The most significant effect I see with multicasting videos is that this activity consumes much more bandwidth than PTT. Multicast, or eMBS, is important because it not only supports one-to-many broadcasts over the network, it adds yet another attribute which, until now, only Land Mobile Radio (LMR) could provide…
