Gigaset S675IP, User Manual

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151
Glossary
Gigaset S675 IP / ALGERIAN eng / A31008-M1915-A751-1-3T19 / glossary.fm / 27.10.08
Ve
rsion 4, 16.09.2005
T
TCP
Transmission Control Protocol
Transport protocol
. Session-based
transmission protocol: it sets up, moni-
tors and terminates a connection
between sender and recipient for trans-
porting data.
TLS
Transport Layer Security
Protocol for encrypting data transmis-
sions on the Internet. TLS is a superor-
dinated
Transport protocol
.
Toggling
Toggling allows you to switch between
two callers or between a conference
call and an individual caller without
allowing the waiting caller to screen
the call.
Transmission rate
Speed at which data is transmitted in
the
WAN
or
LAN
. The transfer rate is
measured in data units per unit of time
(Mbit/s).
Transport protocol
Controls data transport between com-
munication partners (applications).
See also:
UDP
,
TCP
,
TLS
.
U
UDP
User Datagram Protocol
Transport protocol
. Unlike
TCP
,
UDP
is
a non session-based protocol. It does
not establish a fixed connection. The
data packets (datagrams) are sent as
broadcast. The recipient is solely
responsible for making sure the data is
received. The sender is not notified
about whether it is received.
URI
Uniform Resource Identifier
Character sequence for identifying
resources (e.g. e-mail recipient,
http://gigaset.com.com, files).
On the
Internet
URIs are used as a uni-
form identification for resources. URIs
are also described as SIP addresses.
URIs can be entered in the phone as a
number. By dialling a URI you can call
an Internet subscriber with VoIP equip-
ment.
URL
Universal Resource Locator
Globally unique address of a domain on
the
Internet
.
A URL is a subtype of
URI
. URLs identify
a resource by its location on the
Inter-
net
. For historical reasons the term is
often used as a synonym for URI.
User identification
User ID
Name/number combination for access,
e.g. to your VoIP account.
V
Voice codec
See
Codec
.
VoIP
Voice over Internet Protocol
Telephone calls are no longer placed
and transmitted over the telephone
network but over the
Internet
(or other
IP networks).
VoIP provider
A VoIP, SIP or
Gateway provider
is an
Internet service provider that provides
a
Gateway
for Internet telephony. As
the phone works with the SIP standard,
your provider must support the SIP
standard.
The provider routes calls from VoIP to
the telephone network (analogue,
ISDN and mobile radio) and vice versa.
W
WAN
Wide Area Network
Wide-area network that is unrestricted
in terms of area (e.g.
Internet
).