Siemens 8000 manual 711, 722, 729, Gateway

Glossary

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.

E

EAP

Extensible Authentication Protocol. An authentication framework that is frequently used in WLAN networks. It is defined in RFC 3748.

F

FTP

File Transfer Protocol. Used for transferring files in networks, e. g., to update telephone software.

G

G.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.

X-2	A31003-O1010-M100-10-76A9, 13/06/2008
	HiPath 8000 - OpenStage Family, Administration Manual