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ITT System 12

Known as: System 12 
System 1240 (later System 12), was an ambitious new Digital Telephone Exchange, developed since in 1977 by ITT Corporation and reportedly cost US$1… 
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Papers overview

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2008
2008
-h-iTT Me wiTh YoUr BesT shoT: reaL-TiMe assessMenT...After learning of classroom response systems at a conference, several… 
1986
1986
Communication requirements in tactical and field environments dictate that mobile, reliable, secure and integrated voice and data…