iDEN Digital Phone System

iDEN i1000 Handset

iDEN^® (Integrated Digital Enhanced Network) is a digital Private Mobile Radio System launched by Motorola's Land Mobile Products Sector (LMPS) in 1994.

iDEN^® technology, currently available in the 800 MHz, 900 Mhz and 1.5 GHz bands utilizes a variety of advanced technologies, including state-of-the-art vocoders, M16QAM modulation and TDMA (Time Division Multiple Access). 

It allows Commercial Mobile Radio Service (CMRS) operators to maximize the dispatch capacity and provides the flexibility to add optional services such as full-duplex telephone interconnect, alphanumeric paging and data/fax communication services. 

Motorola manufactures iDEN infrastructure and iDEN Portable/Mobile units. iDEN services are available through individual service providers who have established networks in various regions worldwide.

It has implemented commercial iDEN^® systems in the United States, Canada, Argentina, Israel, Japan and Singapore, China, the Philippines and Colombia. To date, approximately 5000 cell sites and over 2m iDEN subscriber units are in operation worldwide.

In the 900 MHz band, iDEN combines pairs of 12.5 kHz channels to create a 25 kHz channel. Using TDMA, the paired channels will be split into six time slots, effectively tripling the RF capacity of each 900 Mhz channel.

See also:
Other Cellular & Mobile Technologies of the world