Code Division Multiple Access 2000 (CDMA-2000) is a third generation (3G) standard developed by the International Telecommunication Union (ITU). This protocol uses CDMA access to send voice and data and signals between mobile phone and cell sites. Enhanced services can be provided to CDMAOne subscribers through CDMA2000. Data communications speeds ranging from 114 Kbps to 2 Mbps can be supported by this standard. This term is also known as IMT-Multi-Carrier or IS-2000,
The main capacity of CDMA2000 is to deliver a radio interface system that is better than the second-generation systems. SK Telecom (Korea) launched the first commercial system that used this platform (based on the CDMA 2000 1x technology) in October 2000. From then, several other versions have been developed. Other technologies include CDMA2000 1xEV-DO (Evolution-Data Optimized) Technologies which further is comprised of several revisions.
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