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