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A31003-C1000-M102-5-76A9, 09/2017
OpenScape Desk Phone CP200/CP205/CP400/CP600 HFA, Administration Manual
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Glossary
Glossary 6
A
ADPCM
Adaptive Differential Pulse Code Modulation. A compressed encoding method for audio
signals which are to be transmitted by a low bandwidth. As opposed to regular -> PCM, a
sample is coded as the difference between its predicted value and its real value. As this
difference is usually smaller than the real, absolute value itself, a lesser number of bits can
be used to encode it.
C
CSTA
Computer Supported Telecommunications Applications. An abstraction layer for telecom-
munications applications allowing for the interaction of -> CTI computer applications with
telephony devices and networks.
CTI
Computer Telephony Integration. This term denotes the interaction of computer applica-
tions with telephony devices and networks.
D
DFT
Digital Feature Telephone. A phone with no line keys.
DHCP
Dynamic Host Configuration Protocol. Allows for the automatic configuration of network
endpoints, like IP Phones and IP Clients.
DiffServ
Differentiated Services. Specifies a layer 3 mechanism for classifying and managing net-
work traffic and providing quality of service (-> QoS) guarantees on -> IP networks. Diff-
Serv can be used to provide low-latency, guaranteed service for e. g. voice communication.
DLS
The Deployment Service (DLS) is a OpenScape management application for the adminis-
tration of workpoints, i. e. IP Phones and IP Clients, in both HiPath- and non-HiPath net-
works.
DNS
Domain Name System. Performs the translation of network domain names and computer
hostnames to -> IP addresses.
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