The TD-SCDMA (Time-Division/Synchronous Code-Division Multiple Access) standard was proposed by the China Wireless Telecommunication Standards group (CWTS) and approved by the 3GPP (3rd-Generation Partnership Project) as the low-chip-rate TDD standard of the 3G standard family. Designed for 1.6MHz channels, it is compatible with 5MHz unpaired 3G bands in any region of the world. The SoftFone-LCR+ chipset gives TD-SCDMA handset manufacturers the option to choose between a single platform for either voice-centric or multimedia-capable handsets. The SoftFone-LCR+ chipset provides support for enhanced multimedia functions such as 3Mpixel cameras, USB, multi-format audio encode/decode, as well as advanced video capture and playback, and stereo audio codecs. All handled in software are video algorithms such as MPEG4, H.263 and H.264 for screen sizes up to QVGA; stereo audio codecs including MP3, AAC+, WMA and others; and 128-voice MIDI ringtones. The chipset enables dual-mode TD-SCDMA/GPRS operation and achieves full 384kbit/s 3G performance, enabling faster download speeds, video streaming, video telephony and Web-browsing capabilities. The SoftFone-LCR+ dual-mode chipset consists of five chips, including the ARM9-based AD6903 digital baseband processor. The software-based approach of the SoftFone architecture enables terminal developers to maintain maximum software flexibility. Additionally, the SoftFone-LCR+'s AD6857 Stratos-T analogue-baseband and power-management IC provides a full set of audio features, as well as efficient power management. Other chips included are the Othello-W direct-conversion radio transceiver for either LCR time-division-duplex (TDD) or W-CDMA frequency-division-duplex (FDD) terminals, and the Othello-G transceiver for dual-mode operation.