1-1
Chapter
1
Overview
This chapter describes the various functions of the
SMG-400
system,
i
ts
component
parts, and
system
specifications
to provide you with a good
understand
ing
of
the
system.
Introduction to the SMG-400
SMG-
4
00 VoIP (Voice over Internet Protocol) gateway system is a high performance H.323
compliant gateway optimized for voice communication over the Internet.
SMG-
4
00 enables transmission of both voice and FAX data from a PSTN (Public Switched
Telephone Network) through real-time data compression and protocol conversion. Therefore, it
enables seamless integration of voice and data networks, simple network architecture design and
considerable cost reduction in network infrastructure construction. Also, it can provide long-
distance and international telephone services at local telephone rates for users in an Internet or
Intranet environment.
Since SMG-
4
00 is designed based on hardware and software modules, it is easy to install.
Installation of trunk
s
, subscriber line
s
or new software for additional features is possible
,
even during
operation if necessary.
SMG-
4
00 provides local/remote CLI (Command Line Interface). To use SMG-
4
00 after
installing
the hardware
, only a basic information configuration for system operation using CLI
commands is needed, while the remaining operatin
g
environment configuration is automatically
configured using default values. Providing conversational type CLI, SMG-
4
00 enables easier
system configuration even if a user is not accustomed to the Gateway system.