iDEN (Integrated Digital Enhanced Network) is a wireless technology from Motorola combining the capabilities of a digital cellular telephone, two-way radio, alphanumeric pager and data/fax modem in a single network. iDEN operates in the 800 MHz, 900MHz, and 1.5 GHz bands and is based on time division multiple access (TDMA) and GSM architecture. It uses Motorola's Vector Sum Excited Linear Predictors (VSELP) vocoder for voice compression and QAM modulation to deliver 64 Kbps over a 25 KHz channel.
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iDEN is designed to give the mobile user quick access to information without having to carry around several devices.
Currently, iDEN systems work in more than a dozen countries.