Gigaset SE551 Manual page 140

Glossary
TCP/IP
Protocol family on which the
computer connection.
form of a continuous data stream. TCP/IP is the basis on which services such as WWW,
Mail and News are built. There are other protocols as well.
UDP
User Datagram Protocol
UDP is a Protocol of the
munication partners (applications). Unlike TCP, UDP is a non-session based protocol. It
does not establish a fixed connection. The data packets, so-called datagrams, are sent
as a Broadcast. The recipient is responsible for making sure the data is received. The
sender is not notified about whether it is received or not.
UPnP
Universal Plug and Play
UPnP technology is used for the spontaneous linking of home or small office networks.
Devices that support UPnP carry out their network configuration automatically once
they are connected to a network. They also provide their own services or use services of
other devices on the network automatically.
URL
Universal Resource Locator
Globally unique address of a Domain on the Internet.
Virtual server
A virtual Server provides a service on the Internet, that runs not on itself, but on another
network component. The Gigaset SE551 WLAN dsl/cable can be configured as a virtual
server. It will then direct incoming calls for a service via
appropriate Port of the network component in question.
VoIP
Voice over IP
See Internet telephony
WAN
Wide Area Network
A WAN is a network that is not restricted to one particular area, such as the Internet.
A WAN is run by one or more public providers to enable private access. You access the
Internet via an Internet
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Internet is based.
TCP provides applications with a reliable transmission link in the
TCP/IP protocol family that handles data transport between com-
Provider.
IP forms the basis for every computer-to-
Port Forwarding directly to the