Tel Aviv-based RAD Data Communications, part of the RAD Group, has launched the DV-MUX, an adaptive data/voice time-division multiplexer. According to RAD, it comes with one or two voice channels and one sync data channel, and supports data rates from 9,600bps to 256Kbps, including the new rates for V.Fast modems and Digital Data Service. The company says that the DV-MUX ensures efficient wide area network line utilisation by reassigning bandwidth from ‘on-hook’ voice channels to the data channel. On the voice side, RAD reports that a proprietary voice compression technique enables the mux to produce near toll-quality voice at eight- or 9.6Kbps, with satisfactory voice quality at 6.4Kbps and 7.2Kbps; it further claims that end-to-end speech compression delay is 40mS, making the product well-suited to interactive and time-sensitive applications. The product is available immediately; prices on application to the company. – RAD has also announced that revenues from the sale of its local network-wide area network communications products in fiscal 1993 totalled $60m, a 30% increase over 1992. Revenues rose 250% in Eastern Europe and 38% in North America, and distributors in India and the Far East reported sales gains of 300% and 230% respectively over 1992 results.