(In topic `Mobile Internet`) CDPD (Cellular Digital packet Data) is a nationwide digital wireless data network built by AT&T, Ameritech, GTE, & BellAtlantic Mobile that overlays the existing circuit-switched cellular network in the USA and currently offers a service to over 3000 US towns and cities. Found on http://www.encyclo.co.uk/local/20477
Cellular Digital Packet Data. A packet-radio protocol that uses 30 KHz AMPS radio channels to transmit packets of data on idle AMPS FDMA channels. Standardised by TIA/EIA/IS-732. See TIA.
Found on http://www.encyclo.co.uk/visitor-contributions.php
Cellular Digital Packet Data. Open standard for two-way wireless data communication over high-frequency cellular telephone channels. Allows data transmissions between a remote cellular link and a NAP. Operates at 19.2 Kbps. Found on https://www.encyclo.co.uk/local/22803