User's Manual

Glossary 67
is a Terminal Adaptor since it interfaces to GSM
digital data services.
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.
Narrow-band GSM data service. For example entering
*79*1234# might return the stock price for stock 1234.
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