Under the direction of Donahue, Nextel implemented a digital
technique invented by Motorola called iDEN (integrated digital
enhanced network)
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ISDN stands for Integrated Services Digital Network
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With the advent of the Integrated Service Digital Network
(ISDN), the telecommunications network no longer had to separate
voice, text, data, and image traffic
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Integrated
Services Digital Network
(Integrated
Services Digital Network) An international standard for switched,
digital dial-up telephone service for voice and data.