CDMA 2000 builds on the inherent advantages of CDMA technologies and introduces other enhancement techniques, such as orthogonal frequency division multiplexing (OFDM and OFDMA), advanced control and signalling mechanisms, improved interference management techniques, end-to-end QoS, and new antenna techniques such as Multiple Inputs Multiple Outputs (MIMO) and Space Division Multiple Access (SDMA) to increase data rates and QoS, while significantly improving network capacity and reducing delivery cost. The key features of CDMA 2000 are as follows,

• Variable Data Rates: The CDMA 2000 system provides a wide range of implementation options to support data rates (both circuit switched and packet switched) starting from a TIA/EIA-95B compatible rate of 9.6 Kbps up to greater than 2 Mbps.
• Flexibility of Operation: The CDMA 2000 system can be operated in a wide range of environments including outdoor mega cells (cell$\gt$35 km radius), outdoor macrocells (cell 1-35 km radius), indoor/outdoor microcells (up to 1 km radius), and indoor/ outdoor picocells ($\lt$50 m radius). The CDMA 2000 system can be deployed in indoor/outdoor environments, wireless local loops (WLL), vehicular environments (limited mobility and full mobility), and mixed vehicular and indoor/outdoor environments.
• Support for Advanced Mobile Services: CDMA 2000 1xEV-DO enables the delivery of a broad range of advanced services such as high-performance VoIP, push-to-talk, video telephony, multimedia messaging, multicasting, and multiple players playing online gaming with 3D graphics.
• Devices Selection: CDMA2000 offers a broad selection of devices and has a signifcant cost advantage compared to other 3G technologies to meet the diverse market needs around the world.
• Seamless Evolution Path: CDMA 2000 has a long-term evolution path, which is built on the principle of backward and forward compatibility in-band migration, and support of hybrid network configurations.
• Efficient Use of Spectrum: CDMA 2000 offers the enhanced voice capacity and more data rate with fewer spectrums. Therefore it decreases the cost of delivery for operators and offers superior customer experience for the end users.
• Improved Performance: CDMA 2000 performance in terms of data speed, voice capacity, and latencies outperforms in commercial deployments and other comparable technologies.