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The Integrated Digital Enhanced Network (iDEN) is a proprietary mobile communications technology developed by Motorola that combine the capabilities of a digital cellular telephone with a two-way radio, alphanumeric pager and data/fax modem in a single network.
iDEN operates in the 800 MHz, 900 MHz 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) voice encoder for voice compression and QAM modulation to deliver 64 kbps over a 25 KHz channel.
- The Broadband Availability Gap, OBI Technical Paper No 1, Glossary, at 133 (full-text).