Glossary Nur für den internen Gebrauch
A31003-O1010-M100-10-76A9, 13/06/2008
X-2 HiPath 8000 - OpenStage Family, Administration Manual
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DLS
The Deployment Service (DLS) is a HiPath management application for the administration
of workpoints, i. e. IP Phones and IP Clients, in both HiPath- and non-HiPath networks.
DNS
Domain Name System. Performs the translation of network domain names and computer
hostnames to ->IP addresses.
DTMF
Dual Tone Multi Frequency. A means of signaling between a phone and e. g. a voicemail
facility. The signals can be transmitted either in-band, i. e. within the speech band, or out-
band, i. e. in a separate signaling channel.
EEAP
Extensible Authentication Protocol. An authentication framework that is frequently used in
WLAN networks. It is defined in RFC 3748.
FFTP
File Transfer Protocol. Used for transferring files in networks, e. g., to update telephone
software.
GG.711
ITU-T standard for audio encoding, used in ISDN and ->VoIP. It requires a 64 kBit/s band-
width.
G.722
ITU-T standard for audio encoding using split band ->ADPCM. The audio bandwidth is 7
kHz at a sampling rate of 16 kHz. There are several transfer rates ranging from 32 to 64
kBit/s, which correspond to different compression degrees. The voice quality is very good.
G.729
ITU-T standard for audio encoding with low bandwidth requirements, mostly used in VoIP.
The standard bitrate is 8 kBit/s. Music or tones such as ->DTMF or fax tones cannot be
transported reliably with this codec.
Gateway
Mediation components between two different network types, e. g., ->IP network and ISDN
network.