RTSP
Real Time Streaming Protocol
SDN
service dialing number
SHA
Secure Hash Algorithm
SIM
Subscriber Identity Module
S/MIME
Secure Multipurpose Internet Mail Extensions
SMS
Short Message Service
SMSC
Short Message Service Center
SSL
Secure Sockets Layer
SSID
service set identifier
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
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