Using a four-year-old technology called cellular digital packet data or CDPD, a roster of communications vendors are finding instant wireless access to be an effective tool for police officers on ...
Cellular Digital Packet Data, a digital TCP/IP overlay on U.S. analog cellular phone systems, is introduced. It offers a raw data rate of 19.2Kbit/sec. and actual throughput of 9.6Kbit/sec. Global ...
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