Secure Hash Algorithm
SIM
Subscriber Identity Module
S/MIME
Secure Multipurpose Internet Mail Extensions
SMS
Short Message Service
SMSC
Short Message Service Center
SSID
service set identifier
SSL
Secure Sockets Layer
TCP
Transmission Control Protocol
TLS
Transport Layer Security
Triple DES
Triple Data Encryption Standard
TTY
teletype
UMA
Unlicensed Mobile Access
VPN
virtual private network
WAN
wide area network
WAP
Wireless Application Protocol
WEP
Wired Equivalent Privacy
User Guide Glossary
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