VoloAccess™ User Manual
Copyright © Vololink Pty Ltd 2006-2010 V1.43 July 2010 Page 72 of 78
Glossary
A
ADSL – Asymmetric Digital Subscriber Line. Transmits high-speed data downstream to the end user and
lower-speed data upstream toward the network. Many wired broadband services use ADSL.
APN – Access Point Name. The name of a 3G service provider‟s wireless access point.
B
Broadband – A term used when describing the bandwidth or capacity needed to carry multiple voice, video
or data channels simultaneously. Broadband technology was introduced to help deliver increased amounts
of speeds and advanced capabilities. These advancements now give consumers better access to the
Internet, related services, and facilities.
BSSID – Basic Service Set Identifier - the BSSID is the MAC address of a wireless access point.
C
CHAP – Challenge Handshake Authentication Protocol. CHAP is used in PPP authentication to verify the
identity of a peer system.
Convergent Wireless Terminal – A single wireless terminal that can be used to access different services
offered by different networks.
D
DHCP – Dynamic Host Configuration Protocol. A set of rules used by communications devices such as a
computer, router or network adapter to allow the device to request and obtain an IP address from a server
which has a list of addresses available for assignment. See also Static DHCP
DNS – Domain Name System. The Domain Name System associates various information with domain
names; most importantly, it serves as the "phone book" for the Internet by translating human-readable
computer hostnames, e.g. www.vololink.com, into IP addresses, e.g. 208.77.188.166, which networking
equipment needs to deliver information.
DDNS - Dynamic Domain Name System. A method, protocol, or network service that provides the capability
for a networked device using the Internet Protocol Suite, such as an IP router or computer system, to notify
a domain name server to change, in real time, the active DNS configuration of its configured hostnames,
addresses or other information stored in DNS.
DTMF – Dual Tone Multi-Frequency. Frequency signalling is used for telephone signalling over the line in
the voice-frequency band to the call switching center.
E
EDGE – Enhanced Data GSM Environment. A faster version of the GSM standard. It is faster than GSM
because it can carry messages using broadband networks that employ more bandwidth than standard GSM
networks.
F
Failover – WAN Failover is the capability to switch automatically to a secondary network when the primary
network fails.
Frequency – Assigned channel space within the radio wave spectrum.
G
GPRS – General Packet Radio Service. A technology that sends packets of data across a wireless network
at speeds of up to 114Kbps. It is a step up from the circuit-switched method; wireless users do not have to
dial in to networks to download information. With GPRS, wireless devices are always on - they can receive
and send information without dial-ins. GPRS is designed to work with GSM.
GSM – Global System for Mobile (Communications). GSM is a digital mobile telephone system that is
widely used in Europe and other parts of the world. GSM uses a variation of Time Division Multiple Access
(TDMA). Since many GSM network operators have roaming agreements with foreign operators, users can
often continue to use their mobile phones when they travel to other countries.
