One thing that most folks beating the drum for other-than-iDen push-to-talk networks repeatedly seem to miss is the last-ditch performance when the towers fail: iDen devices can be used as point-to-point walkie-talkies even without the tower. None of the other types of service offer that.
In any mission-critical communication system, the ability of folks at a site to maintain communication when everything external fails is very much a desired feature.
This is one reason why emergency services or companies that work to restore utilities prefer iDen over anything else.
They are walkie-talkies that can also make PSTN calls so long as the towers are working. They have their own built-in backup that NONE of the CDMA or GSM variants can match.
BTW: Motorola still has a viable worldwide market in iDEN for this very reason...
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Can the direct talk feature of iDen phones be used without a contract as they are now or soon will be obsolete? Norm
Network Vision on 1x Only Towers
in Network, Network Vision/LTE Deployment
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