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MILPITAS, CALIF. - PC-Tel Inc. has made a promised upgrade of its PCT388 host signal-processing (HSP) modem to 56-kbit/second pulse-code modulation (PCM), licensing Rockwell Semiconductor's K56Flex implementation.
The 100-pin codec chip relies on the host Pentium for many data-pump and UART functions and combines support for 56-kbit downloads, V.34 two-way modems, ADPCM...