IMT-Direct Spread (UMTS, W-CDMA) is a third generation mobile technology that offers high speed data rates and multimedia services. It is based on the Global System for Mobile Communications (GSM) standard and uses wideband code division multiple access (WCDMA) radio access technology. IMT-DS was standardized by the International Telecommunication Union in 2000.

IMT-DS offers several advantages over other 3G technologies, including higher data rates, improved spectral efficiency, and better compatibility with GSM networks. It also supports both circuit-switched and packet-switched voice and data services.

Despite these advantages, IMT-DS has not been widely adopted due to its high cost of deployment and lack of backwards compatibility with existing 2G/2.5G networks. In addition, it faces competition from other 3G technologies such as High Speed Packet Access (HSPA) and Long Term Evolution (LTE).

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