APPENDIX 2 LIST OF TERMS AND ABBREVIATIONS
AP-5
IDENT Identification Protocol. Protocol that sends information about the client to the serv-
er.
IMEI International Mobile Equipment Identifier. A 15-digit number which indicates the
model number, manufacturer, producer, and serial number of cell phones and
data cards.
IMSI International Mobile Subscriber Identity. Specific number assigned to individual
SIM cards. Enables telephone communication.
IP filter Software that can be configured to easily deny or allow access to a specific port
or address.
IPSec Internet Protocol Security. A protocol suite for securing Internet Protocol (IP) com-
munications by authenticating and encrypting each IP packet of a data stream.
ISDN Integrated Service Digital Network. A digital communications network that handles
data integration for phones and faxes.
LAN Local Area Network. Cable, Fibre-optic, etc. network that allows computers in the
same geographical area to connect to each other and to other devices such as
printers, servers, etc.
LaunchPad BGAN application software to control devices in the system. CD-ROM supplied by
Inmarsat.
MAC address Media Access Control address. Unique number that identifies each computer on
the network. Consists of 6 by 16 decimals.
Metric The criteria used by the router to select the optimal route.
MS-ISDN* Mobile Subscriber ISDN Number. (*: See "IMPORTANT NOTICES" on page i.)
NBT NetBIOS over TCP/IP. A networking protocol that allows legacy computer applica-
tions relying on the NetBIOS API to be used on modern TCP/IP networks.
nslookup A command used in troubleshooting DNS service.
NTP Network Time protocol. A protocol which correctly synchronizes the clock to cor-
rect time with the equipment.
OTA Over The Air. A term meaning wireless communication.
PBX Private Branch eXchange. A telephone exchange that serves a particular busi-
ness or office, as opposed to one that a common carrier or telephone company
operates for many businesses or for the general public.
PDP Packet Data Protocol. A PDP offsers a pack data connection over which the UE
and network can exchange IP packets.
PIN Personal Identification Number. The SIM card identification number.
ping Confirms if computers and networks are connected.
PPPoE Point-to-Point protocol over Ethernet. A protocol for using the PPP function via
Ethernet.
PPTP Point-to-Point Tunneling Protocol. A method for implementing virtual private net-
works. PPTP does not provide confidentiality or encryption; It relies on the protocol
being tunneled to provide privacy.
Proxy server A server that acts as a go-between for requests from clients seeking resources
from other servers.
PS Packet Switching. A method of communication that separates data into small units
(packets) and sends them individually.
PUK PIN Unblocked Key. If the PIN is entered incorrectly 3 times the SIM card is
blocked. Use the PUK code to unblock the SIM.
RDI Restricted Digital Information. ISDN terminology for information or data that is re-
stricted.
RIP Routing Protocol Information. A routing protocol for UDP/IP. Determines the short-
est route to reach the network by calculating the path to the dynamic host based
on the number of hops through routers.
Term Meaning
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