> ptt networks less infrastructure heavy That's often walkie talkies, no? Those are pretty handy in first responder situations. Nation wide networks used in N

> ptt networks less infrastructure heavy That's often walkie talkies, no? Those are pretty handy in first responder situations. Nation wide networks used in Netherlands: https://en.wikipedia.org/wiki/P2000_(network) https://en.wikipedia.org/wiki/P2000_(network) https://en.wikipedia.org/wiki/Terrestrial_Trunked_Radio#cite_note-32 https://en.wikipedia.org/wiki/Terrestrial_Trunked_Radio#cite... P2000 is basically to receive a text. The C2000/TTR is encrypted, meant for Policy/Ambulance/Fire departments and apparently used by many countries in the world. It'll work even when other networks are down. Apparently fully used since 2007. I'm a first responder for my building, it used to be that the C2000 system (simply stated: "professional walkie walkies") would be difficult to use in my building (couldn't go through concrete). We'd lend them our walkie talkies (they work much better as we have a support transmitter within the building). Over the last few years they seem to have improved C2000, nowadays they don't need ours for most areas. The various problems with the C2000 system are explained in Dutch (!) at https://nl.wikipedia.org/wiki/C2000#Problemen https://nl.wikipedia.org/wiki/C2000#Problemen.