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Glossary
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.
RTCP
Real-Time Control Protocol
Is used to control the RTP protocol. The RTCP protocol is a control protocol and therefore
knows which of the transferred RTP sessions belong together.
RTCP port
(Local)
port
by means of which voice data packets are sent and received for VoIP.
RTP
Real-Time Transport Protocol
Global standard for transferring audio and video data. Often used in conjunction with UDP.
In this case, RTP packets are embedded in UDP packets.
S
Server
Makes a service available to other
network subscribers
(
clients
). The term can indicate a
computer/PC or an application. A server is addressed via the
IP address
/
domain name
and
port
.
SIP (Session Initiation Protocol)
Signalling protocol independent of voice communication. Used for establishing and ending
a call. It is also possible to define parameters for voice transmission.
SIP address
See
URI
.
SIP port/Local SIP port
(Local)
port
by means of which SIP signalling data is sent and received for VoIP.
SIP provider
See
VoIP provider
.
SIP proxy server
IP address of your VoIP provider's gateway server.
Static IP address
See
Fixed IP address
.
STUN
Simple Transversal of UDP over NAT
NAT control mechanism.
STUN is a data protocol for VoIP telephones. STUN replaces the private IP address in the VoIP
telephone data packets with the public address of the secure private network. To control
data transfer, a STUN server is also required on the Internet. STUN cannot be implemented
with symmetric NATs.
See also:
ALG
,
Firewall
,
NAT
,
Outbound proxy
.
Subnet
Segment of a
network
.