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Glossary
Gigaset DE900 IP PRO / en / A31008-M2210-R101-5-7619 / glossary.fm / 17.09.2012
PRO Version 3, 30.05.2012
Q
Quality of Service (QoS)
Describes the Quality of Service in communication networks. Differentiations are made
between various Quality of Service classes.
QoS influences the flow of data packets on the Internet, e.g., by prioritising data packets,
reserving bandwidth and optimising data packets.
In VoIP networks, QoS influences the voice quality. If the whole infrastructure (router, net-
work server etc.) has QoS, the voice quality is better, i.e., fewer delays, less echoing, less
crackling.
R
RAM
Random Access Memory
Memory in which you have reading and storage rights. Items such as melodies and screen
pictures are saved in the RAM after you have loaded them onto the phone via the Web
configurator.
Registrar
The registrar manages the network subscribers' current IP addresses. When you register
with your VoIP provider, your current IP address is saved on the registrar. This means you
can also be reached when on the move.
ROM
Read Only Memory
A type of memory that can only be read.
Router
Routes data packets within a network and between different networks via the quickest
route. Can connect Ethernet networks and WLAN. Can be the gateway to the Internet.
Routing
Routing is the transfer of data packets to another subscriber in your network. On their way
to the recipient, the data packets are sent from one router to the next until they reach their
destination.
If data packets were not forwarded in this way, a network like the Internet would not be
possible. Routing connects the individual networks to this global system.
A router is a part of this system; it transfers data packets both within a local network and
from one network to the next. Transfer of data from one network to another is performed
on the basis of a common protocol.
RSS feed
Really Simple Syndication (also Rich Site Summary)
Provision of data in RSS format. RSS is an Internet service that summarises an Internet page
in a short paragraph and includes a link to the original page. Users can subscribe to an RSS
feed and receive automatically updated information.
