elmeg IP130 / en / elmegIP130_v1_April-2014 / glossary.fm / 09.04.2014
V
e
rsion 2, 27.0
5
.2010
157
elmeg IP130
bintec elmeg
Glossary
U
UDP
User Datagram Protocol
Transport protocol
. Unlike
TCP
,
UDP
is a non session-based protocol. UDP does not establish
a fixed connection. The recipient is solely responsible for making sure the data is received.
The sender is not notified about whether it is received or not.
URI
Uniform Resource Identifier
Character sequence for identifying resources (e.g., e-mail recipient, www.bintec-elmeg.com,
files).
On the
Internet,
URIs are used as a unique 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 sub-
scriber with VoIP equipment.
URL
Universal Resource Locator
Globally unique address of a domain on the
Internet
.
A URL is a subtype of the
URI
. URLs identify a resource by its location on the
Internet
. For his-
torical reasons the term is often used as a synonym for URI.
User ID
See
User identification
.
User identification
Name/number combination for access, e.g., to your VoIP account.
V
Voice codec
See
Codec
.
VoIP
Voice over Internet Protocol
Calls are no longer established and transmitted via the telephone network, but via the
Inter-
net
(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)
and vice versa.
W
WAN
Wide Area Network
Wide-area network that is unrestricted in terms of area (e.g.,
Internet
).
