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 ...
Aging wireless network Cellular Digital Packet Data is one step closer to retirement. Internet service provider EarthLink this week introduced four new subscriptions to lure at least 14,000 EarthLink ...
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