Operation Manual

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LANCOM Advanced VoIP Client
 Technical Terms
ENUM tElephone NUmber Mapping
ENUM is an application of the Domain Name System for converting
telephone numbers (in the E.164 format) to Internet addresses. An
ENUM registration of a VoIP number allows calls to be placed
directly via the Internet, for example.
Ethernet Network for limited local operation (10 m to 10 km) in the LAN. The
individual PCs are connected via a cable network. Data is transferred
within this network at a rate of 10 Mbit/s, 100 Mbit/s or 1 Gbit/s.
FD Full Duplex (DX, sometimes also FDX, permits simultaneous trans-
mission of information in both direction, e. g. in telephony)
FTP File Transfer Protocol (Network protocol for file transmission)
G.711 ITU standard for compression,
here: Audiocodec 64 kbit/s
G.723.1 ITU standard for compression,
here: Audiocodec 5.3 kbit/s and 6.3 kbit/s
GAP Generic Access Protocol
Standard for DECT Handsets, which allows the communication
between handsets and basis stations of different manufacturers.
Gateway A gateway is a system, which connects two different networks and
which can transfer the data in one network to the other network and
vice versa. This means that the physical networks can be different
and the protocols used (e.g. IP network and ISDN) can also be diffe-
rent.
GSM Global System for Mobile Communication
Global system for mobile communication
H.323 A collection of international specifications (ITU), which define the
transmission of multimedia data to packet-oriented data connec-
tions.
H.323 Alias Name A symbolic name (e.g. TOMMY), which can be used as the address of
an H.323 terminal instead of an IP address.
H.450 Standard for additional performance specifications in H.323, such as
Conference, Call Forwarding, Hold, Call Swap, etc.
HTTP Hypertext Transfer Protocol. A protocol for transmission of data over
a network. It is mainly used for loading websites and other data from
the World Wide Web (WWW) into a Web browser.
Hub A hub creates a network node in a star-shaped LAN and it connects
several clients to the network.
ID Identification
IEEE Institute of Electrical and Electronics Engineers
International standardization committee
Term Explanation