Specifications

hg-a.fm
A31003-H3580-M103-2-76A9, 01-2009
HiPath 3000/5000 V8 - HG 1500 V8, Administrator Documentation
A-3
Nur für den internen Gebrauch
Terms and Abbreviations
DLS
The DLS (Deployment Service) is a HiPath management application for administering
workpoints (optiPoint telephones and optiClient installations) in HiPath and non-HiPath
networks.
DLI
DLI is the abbreviation for DLS interface.
DMA
Direct Memory Access. DMA technology allows peripheral devices, such as network cards
or sound cards connected to PCs, to communicate directly with each other without a detour
over the CPU. The advantage of DMA technology is increased data transmission speeds
while at the same time unloading the processor.
DMC
Direct Media Connection. The DMC feature is used in HiPath for VoIP (Voice over IP) con-
nections to support the "Payload Switching" feature.
The payload (voice channel) of a HiPath-internal or network-wide voice connection is trans-
ferred via a LAN; here a direct IP connection with no previous TDM data stream conversion
may be made.
When the "DMC any-to-any“ feature is being used, the payload data in a HiPath network is
transferred directly between the IP endpoints without repeated IP TDM conversion. This
direct payload connection is known as Direct Media Connection
DNS
Domain Name System. The DNS is a database distributed over a number of Internet hosts
and responsible for correct routing based on the domain name. DNS assigns domain
names to IP addresses.
DSA
Digital Signature Algorithm, an encryption algorithm. DSA works with a variable public key
length of between 512 bits and (maximum) 1024 bits.
DSL
Digital Subscriber Line. DSL technology speeds up data transmitted over conventional
telephone lines significantly and is designed chiefly for fast Internet access. DSL connec-
tions are primarily available with the technologies Asymmetric DSL (ADSL) and Single Pair
DSL (SDSL). The more common variant, ADSL, transmits Internet data over the existing
telephone network above the telephony frequencies between 138 and 1,104 kHz. ADSL is,
for example, the basis for the T-DSL offering from Deutsche Telekom AG.
DSP
The HG 1500 comes with DSP modules (DSP – Digital Signal Processor). A DSP provides
for two VoIP channels.