Sony GC79 User Manual

Page of 86
Glossary
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PDP
Packet Data Protocol.
Phone book
A memory in the SIM card where phone numbers 
can be stored and accessed by name or position.
PSTN
Public Switched Telephone Network, for example 
ordinary analogue phone line for speech and/or computer 
modem.
RADIUS
Remote Access Dial-In Service. Facility at the ISP 
or corporation to manage remote data connections.
RAS
Remote Access Service.
RX
Receive
SC
Service Centre (for SMS).
Service Provider
A company that provides services and subscriptions to 
GC79 users.
SIM card
Subscriber Identity Module card – a card that must be 
inserted in any GSM-based mobile terminal. It contains 
subscriber details, security information and memory for 
a personal directory of numbers. The card can be a small 
plug-in type or credit card-sized, but both types have the 
same functions. The GC79 uses the small plug-in card.
SMS
Short Message Service. Allows messages of up to 160 
characters to be sent and received via the network 
operator's message centre to a GC79.
TCP/IP
Transmission Control Protocol/Internet Protocol.
TCP/IPv4
TCP/IP Version 4. Most widely implemented form of 
TCP/IP today having a 4 byte address format such as 
212.161.127.136.
TCP/IPv6
Updated version of TCP/IP, having a much larger 
address space and many enhancements.
TE
Terminal Equipment. Generic term for GSM terminals 
such as phones and PC cards.
Terminal Adaptor
Generic term for the equipment terminating a digital 
comms line such as an ISDN2 line. The GC79 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.
WECA
Wireless Ethernet Compatibility Alliance. Also known 
as the WiFi Alliance. A trade body for promotion of 
802.11 technologies and which tests and certifies 
products for WiFi inter-operability.