Cellular - CDPD (1)
CDPD - Cellular Digital Packet Data
- rate: 19.2 Kbps
- digital transmission
- runs over existing mobile infrastructure
- uses its own suite of protocols to encapsulate TCP/IP data over the airlink
- higher reliability, better security
- based on TCP/IP - easy integration with Internet
- during activation carrier assigns IP ADDRESS
- not recommended for Web browsing (rather for short messages, e-mail, web pages without graphics)
- security based on public key negotiation and RC-4 encryption