TLS
Transport Layer Security. Used by Web browsers, for example.
TX
Transmit
Type II
Refers to thickness of a PC Card as defined in the specification from PCMCIA.
URL
Uniform Resource Locator.
USSD
Unstructured Supplementary Services Data.
V.110
ETSI standard for data over an ISDN circuit.
V.120
ETSI standard for data over an ISDN circuit.
VPN
Virtual Private Network.
WWW
World Wide Web.
XML
Extensible Markup Language.
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