What Does Cellular Digital Packet Data (CDPD) Mean?
Cellular digital packet data (CDPD) was a wireless data service used to access the Internet and other packet-switched systems over a cellular network. CDPD was normally used by analog advanced mobile phone system (AMPS) standards and was one of the first generation cellular frequencies. From 1995 to 1996 the CDPD protocol was standardized to answer wireless Web service demands. The technology utilized idle or unused channels operating at 800-900 MHz carriers serving speeds of up to 19.2 kbps. The CDPD protocol was replaced by short message service (SMS), general packet radio services (GPRS) and 3-G technologies.
Techopedia Explains Cellular Digital Packet Data (CDPD)
CDPD technology incorporates the following systems:
