Appendix C - Glossary - Aastra TA710i Hardware Installation Manual

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Appendix C - Glossary

10 BaseT
An Ethernet local area network that works on twisted pair wiring.
100 BaseT
A newer version of Ethernet that operates at 10 times the speed of a 10 BaseT Ethernet.
Domain Name Server (DNS)
Internet service that translates domain names into IP addresses. To use a domain name, a
DNS service must translate the name into the corresponding IP address. For instance, the
domain name
Dual-Tone Multi-Frequency (DTMF)
In telephone systems, multi-frequency signalling in which a standard set combinations of two
specific voice band frequencies, one from a group of four low frequencies and the other from
a group of four higher frequencies, are used. Although some military telephones have 16
keys, telephones using DTMF usually have
12 keys. Each key corresponds to a different pair of frequencies. Each pair of frequencies
corresponds to one
of the ten decimal digits, or to the symbol "#" or "*", the "*" being reserved for special
purposes.
Dynamic Host Configuration Protocol (DHCP)
TCP/IP protocol that enables PCs and workstations to get temporary or permanent IP
addresses (out of a pool)
from centrally-administered servers.
Federal Communications Commission (FCC)
U.S. government regulatory body for radio, television, interstate telecommunications
services, and international services originating in the United States.
Foreign Exchange Service/Station (FXS)
A network-provided service in which a telephone in a given local exchange area is
connected, via a private line, to a central office in another, i.e., "foreign", exchange, rather
than the local exchange area's central office. This is the station (telephone) end of an FX
circuit. An FXS port will provide dial tone and ring voltage.
International Telecommunication Union (ITU)
Organization based in Geneva, Switzerland, that is the most important telecom standards-
setting body in the world.
Internet Protocol (IP)
A standard describing software that keeps track of the Internet's addresses for different
nodes, routes outgoing messages, and recognizes incoming messages.
Light Emitting Diode (LED)
A semiconductor diode that emits light when a current is passed through it.
Local Area Network (LAN)
© 2014 Aastra Sweden | 154_1531 ANF 901| A | 2014-05-15
www.example.com might translate to 198.105.232.4.
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TA7104i Hardware Installation