Patton electronic SmartNode 4110 Series ユーザーズマニュアル

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SmartWare architecture terms and definitions
647
SmartWare Software Configuration Guide 
A • Terms and definitions
flash:
A region in the persistent memory of a SmartNode. See also flash mem-
ory
.
Gatekeeper
Gatekeepers manage H.323 zones, which are logical collections of 
devices such as all H.323 devices within an IP subnet. For example, gate-
keepers provide address translation (routing) for the devices in their zone.
Gateway
A gateway refers to a special purpose component that connects two con-
texts of different types, For example, the CS and the IP context. It handles 
connections between different technologies or protocols. SmartWare 
includes an H.323 and SIP gateway.
H.323
ITU-T recommendation H.323 describes terminals, equipment and services 
for multimedia communication over Local Area Networks (LAN) which do 
not provide a guaranteed quality of service. H.323 terminals and equip-
ment may carry real-time voice, data and video, or any combination, 
including video telephony.
H.323 RAS
H.323 registration authentication service (RAS) is a sub protocol of 
H.323. The RAS signaling protocol performs registration, admissions, and 
bandwidth changes and disengage procedures between the VoIP gate-
way and the gatekeeper.
High-Pass Filter
A high-pass filter is normally used to cancel noises at the voice coder 
input. See also post filter
Host
Computer system on a network. Similar to node, except that host usually 
implies a PC or workstation, whereas node generally applies to any net-
worked system, including access servers and routers. See also node.
Hostname
Name given to a computer system, e.g. a PC or workstation.
Hunt Group
In SmartNode terminology, a hunt groups allows you to apply the inter-
face configuration to multiple physical ports. Within the hunt groups free 
channels for outgoing calls are hunted on all available ports. In general a 
hunt group represents a group of trunk lines as used for direct dialing in 
(DDI).
Interface
An interface is a logical construct that provides higher-layer protocol and 
service information. An Interface is configured as a part of a context, and 
is independent of a physical port or circuit.
Interface Card
An optional plug-in card offering one or more ports of a specific physical 
standard for connecting the SmartNode to the outside world.
ISDN
Integrated Services Digital Network
ISDN Services
ISDN Services comprise voice, data, video and supplementary services. 
Supplementary services are services available in the ISDN network, such 
as calling line identification presentation (CLIP) or call waiting (CW). See 
also Q.SIG
Jitter
Jitter is the variation on packets arriving on a SmartNode. See also dejitter 
buffer
.
Mode
The CLI is comprised of modes. There are two basic mode groups, the exe-
cution mode group and the configuration mode group.
Term or Definition
Meaning