Patton electronics SmartNode Series Software Configuration Manual page 411

Model 3201 G.SHDSL Integrated Access Device User Guide
Term or Definition
Comfort Noise
Command Line Interface
Configuration Download
Configuration File
Configuration Server
Configuration Upload
Context
Data Port
Dejitter Buffer
Digit Collection
Driver Software Download
Driver Software Image
DTMF Relay
Echo Canceller
Factory Configuration
Fast Connect
Flash Memory
SmartWare architecture terms and definitions
A • Terms and definitions
Comfort noise is generated at the remote end of the silent direction to
avoid the impression that the connection is dead. See also Silence Com-
pression .
An interface that allows the user to interact with the SmartWare operating
system by entering commands and optional arguments. Other operating
systems like UNIX or DOS also provide CLIs.
A configuration file is downloaded from a remote TFTP server via TFTP to
the persistent memory (nvram:) or volatile memory (system:)of a Smart-
Node.
The configuration file contains SmartWare CLI commands, which are used
to configure the software modules of SmartWare performing a certain
functionality of the SmartNode.
A central server used as a store for configuration files, which are down-
loaded to or uploaded from a SmartNode using TFTP.
A configuration file is uploaded from the persistent memory (nvram:) or
volatile memory (system:) of a SmartNode via TFTP to a TFTP server.
A SmartWare context represents one specific networking technology or
protocol, e.g. IP or circuit switching.
Physical port connected to a network element or used for data transfer.
To compensate variable network delays, SmartWare includes a dejitter
buffer. Storing packets in a dejitter buffer before they are transferred to the
local ISDN equipment, e.g. telephone, SmartWare converts a variable
delay into a fixed delay, giving voice a better quality. See also Jitter .
SmartWare supports overlap dialing. Some of the connected devices
(PBX, ISDN network, remote gateways and gatekeepers) may however
require bloc sending of the dialed number. SmartWare collects the over-
lap dialed digits and forwards them in a single call setup message
A driver software image is downloaded from a remote TFTP server to the
persistent memory (flash:) of a SmartNode.
The software used for peripheral chips on the main board and optional
PMC interface cards is stored in the persistent memory (flash:) of a Smart-
Node.
DTMF relay solves the problem of DTMF distortion by transporting DTMF
tones over low-bit-rate codecs out-of-band or separate from the encoded
voice stream
Some voice devices unfortunately have got an echo on their wire. Echo
cancellation provides near-end echo compensation for this device.
The factory configuration (factory-config) represents the system default set-
tings and is stored in the persistent memory (nvram:) of a SmartNode.
A "normal" call setup with H.323 requires several TCP segments to be
transmitted, because various parameters are negotiated. Since a normal
call setup is often too slow, fast connect is a new method of call setup that
bypasses some usual steps in order to make it faster.
Persistent memory section of a SmartNode containing the Application
Image, Bootloader Image and the driver software Image.
Meaning
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