Operation Manual

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LANCOM Advanced VoIP Client
 Technical Terms
Instant Messaging A service that uses the Instant Messenger software (client) to
enable real-time communication (chat) with other subscribers. Short
text messages are sent using push technology via a network (server)
to the recipient (usually via the Internet), who can respond to them
immediately. Files can usually also be exchanged by this means. In
addition, many messaging programs offer video or telephone confe-
rences.
IPEI Hardware address (12 digits) of a DECT handset which allows an
unique identification.
IP Internet Protocol
Fundamental protocol of the Internet, which combines packet-orien-
ted networks with different technical bases to one large network.
Thus this protocol (on layer 3 of the OSI layer model) is used for
addressing and distributing data into packets.
IP Address An IP address is a 32-bit number, which is usually shown as a four-
part number, e.g. 192.177.65.4, and which is assigned to every
computer connected to the Internet. Domain names, which are
unambiguously assigned to IP addresses using a DNS server, were
introduced in order to make these addresses simpler and clearer for
users.
IP PBX IP Private Branch Exchange
A telephone private branch exchange (PBX) which is created by a
software application. It uses Voice-over-IP (VoIP) technology for
voice transmission.
ISDN Integrated Services Digital Network
Service integrating digital network
ITSP Internet Telephony Service Provider.
An Internet telephony service provider offers an interface via a
gateway between Internet telephony and the classic telephone
network. Thus via an ITSP, VoIP users can also reach subscribers in
the classic telephone network, and vice versa.
IVR Interactive Voice Response
Interactive Call handling
LAN Local Area Network
A local network, which is made up of numerous, interconnected
computer terminals within one company location and which is used
to transfer data.
LDAP Lightweight Directory Access Protocol
A network protocol that allows querying and modification of infor-
mation of a directory service (a distributed hierarchical database in
the network). The current version is specified in RFC 4511.
LED Light Emitting Diode
Light emitting diode (small light) for displaying status information.
Term Explanation