User manual

VoloFone™ VF100 User Manual
Copyright © Vololink Pty Ltd 2006-08 V1.1 Jan 2008 Page 48 of 50
K
kbps – kilobits per second
L
LAN – Local Area Network.
M
MTU – Maximum Transmission Unit.
N
NAT – Network Address Translation.
P
PIN – Personal Identification Number.
PPP – Point to Point Protocol. PPP authentication provides that a host, before establishing a PPP
connection, may require that the other host uniquely identify itself using prearranged, secure data known to
both hosts. This is in the form of a PPP Username and PPP Password pair.
Protocol – The rules of order by which a communications network is operated.
POTS – Plain Old Telephone System (or Service).
PUK – Personal Unlocking Code. Used in GSM mobile phones to unlock a locked SIM.
R
RF – Radio Frequency.
S
SIM – Subscriber Identity Module. A GSM SIM is a single-chip computer with:
 an Operating System
 a File System
 Applications
Main Purpose: Security Module for customer authentication owned (and trusted) by the network
operator.
SMS – Short Messaging Service. A service through which users can send text based messages from one
device to another.
T
TCP/IP – Transmission Control Protocol/Internet Protocol. The basic communication language or protocol of
the Internet.
U
UTMS – Universal Mobile Telecommunications System. UMTS is a so-called 'third-generation (3G),'
broadband, packet-based transmission of text, digitised voice, video, and multimedia.
USIM – Universal Subscriber Identity Module. A Universal Subscriber Identity Module is an application for
UMTS mobile telephony running on a UICC smart card which is inserted in a 3G mobile phone.
V
VoIP – Voice over Internet Protocol. A term used in IP telephony for a set of facilities for managing the
delivery of voice information using the Internet Protocol (IP).
VPN – Virtual Private Network.
W
WAN – Wide Area Network
WCDMA – Wideband Code Division Multiple Access.