19216811.liveAppendix C: Important Safety Information and Glossary
65
Glossary
APN (Access Point Name/Network):
Provides routing information. Consists of:
Network ID:
Identifies the exte
rnal service requested by an user.
Mobile network operator ID: Specifies routing information.
ARFCN (Absolute Radio Frequency Channel Number):
The
specific ID numbers
for all radio channels used in cellular mobile communications.
bps (bits per second):
How data flow is measured.
CHAP (Challenge Handshake Authentication Protocol):
CHAP identifiers are
changed frequently and authentication can be requested by the server at any
time.
DNS (Domain Name System):
Helps route network traffic by making the addressing
process more user-friendly.
DHCP (Dynamic Host Configuration Protocol):
How devices obtain IP addresses
from a server.
DUN (Dial-Up Network):
Windows component that enables online access via a
modem.
IMEI (International Mobile Equipment Identity):
A number unique to each
GSM/UMTS device that can be used block network access by a stolen mobile
device.
IP (Internet Protocol):
Routes packets over a network.
Kbps (Kilobits per second):
A data flow measure; 1024 bits/second.
LAN (Local Area Network):
A data network with limited range but good bandwidth.
LTE (Long Term Evolution):
Fourth generation cellular technology featuring data
speeds of up to 100Mbps downlink and 50Mbps uplink. Additional features
include MIMO transmissions and an all IP based network.
Mbps (Megabits per second):
A data flow measure; 1,048,576 bits/second.
PAP (Password Authentication Protocol):
The difference between PAP
authentication and a manual or scripted login, is that PAP is not interactive. The
username and password are entered in the client's dialing software and sent as
one data package as soon as the modems have established a connection, rather
than the server sending a login prompt and waiting for a response.
PPP (Point-to-Point Protocol):
An internet connection method.
PIN (Personal Identity Number):
Four to eight digital numbers SIM card security
code; allows access to the carrier’s network.
Rx:
Shorthand for Reception.
SIM (Subscriber Identity Module):
A small card that contains key mobile device
identification, subscription and contact information.
Tx:
Shorthand for Transmission.