What is CDPD (Cellular Digital Packet Data)?

Fixed/Mobile	Mobile
Circuit/Packet	Packet (A circuit switched variant, CS-CDPD, does exist.)
Max Bandwidth	19.2Kb
Range	Coverage area of host network
Frequency	Frequency of host network
Host Network	Cellular
Definer	CTIA (Cellular Telecommunications and Internet Association)
URL	http://www.wow-com.com/

CDPD (Cellular Digital Packet Data) is a specification for supporting wireless access to the Internet and other public packet-switched networks over cellular telephone networks. CDPD supports TCP/IP and Connectionless Network Protocol (CLNP). CDPD utilizes the RC4 stream cipher with 40 bit keys for encryption.

CDPD is defined in the IS-732 standard.

CDPD Modems

CDPD modems are manufactured by companies such as Sierra Wireless, Novatel, and AirCard.

CDPD ISP's

Many wireless ISP's support CDPD modems, including Airlink, Alltel, AT&T Wireless Services, Earthlink Wireless, Globicom Wireless, Telus Mobility, and Verizon Wireless.