Specifications

bkglos.fm
A31003-S2030-M100-10-76A9, 01/2014
OpenStage SIP V3R3 for OpenScape Voice, Administration Manual
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Nur für den internen Gebrauch Glossary
PoE
Power over Ethernet. The IEEE 802.3af standard specifies how to supply power to com-
pliant devices over Ethernet cabling (10/100Base-T).
Port
Ports are used in ->IP networks to permit several communication connections simulta-
neously. Different services often have different port numbers.
PSTN
Public Switched Telephone Network. The network of the world's public circuit-switched
telephone networks.
Q
QoS
Quality of Service. The term refers to control mechanisms that can provide different priority
to different users or data flows, or guarantee a certain level of performance to a data flow
in accordance with requests from the application program. The OpenStage phone allows
for the setting of QoS parameters on layer 2 and layer 3 (DiffServ).
QDC
QoS Data Collection. A HiPath IP service that is used to collect data from HiPath products
in order to analyze their voice and network quality.
QCU
Quality of Service Data Collection Unit. A service tool that collects QoS report data from IP
endpoints.
QoS
Quality of Service. Provides different priority to different users or data flows, or guarantee
a certain level of performance to a data flow.
R
RAM
Random Access Memory. Memory with read / write access.
ROM
Read Only Memory. Memory with read only access.
RTCP
Realtime Transport Control Protocol. Controls the ->RTP stream and provides information
about the status of the transmission, like QoS parameters.
RTP
Realtime Transport Protocol. This application layer protocol has been designed for audio
and video communication. Typically, the underlying protocol is ->UDP.