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Call it off-network, talk-around, simplex, one-to-one, one-to-many, or peer-to-peer for IT folks, it is all the same. Regardless of how good a network or series of networks is, there are times when those in the field need to take their communications off the network(s) and down to a local level. Public-safety radio communications began with one-way from the stationhouse to the vehicle and then evolved in the 1930s to two-way radio base station-to-mobile and then mobile-to-mobile. After a number of technological advances, we now have multiple networks…
