What are the benefits of UMTS TDD CDMA vs CDMA2000 1X?
UMTS TDD is built to support high speed data rates in the excess 2Mbps, whereas CDMA 2000 1X networks are primarily for voice and can only support up to 153Kbps of data. Thus performance in data applications is more superior on UMTS TDD and it is also possible to leverage on VoIP technologies which are supported by the UMTS TDD system.