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Chapter
1
This chapter describes the various functions of the SMG-3000 telephone system.
SMG-3000 System Functions
The SMG-3000 system is a small-scale version of the DCS Gateway System. It combines voice and data
(ISDN) communications, creating a new type of telephone exchange system. It also offers the Voice over
Internet (VoIP) protocol using the Internet Telephone (ITM) interface. Both the system hardware and soft-
ware operate on a modular design so that the system can be easily expanded and new modules added.
The SMG-3000 system provides an integrated system offering various services when connected to other
equipment such as Automatic Call Distribution (ACD) and voice mail systems (VMS). As networks digital-
ise and increase in speed, the ability of the SMG-3000 system to provide excellent digital data transmission
is highlighted.
System Features
The SMG-3000 system offers:
•
The latest VoIP technology.
•
The latest microprocessor technology.
•
Improved VLSI circuit technology.
•
Custom IC design technology.
•
System diagnostics program.
Cost-effective Design Features
The SMG-3000 system is designed to be cost-effective by:
•
using optimum card component density at the most competitive price;
•
minimising power consumption using CMOS technology components;
•
installing components more effectively on the control card;
•
expanding system functions more conveniently and cheaply;
•
providing flexible control functions for long-distance calls and cost management functions such as con-
trol function by class of service (COS);
•
providing the Call Detail Recording function which analyses system usage and call costs.
Flexible Modules
The SMG-3000 system operates on a modular basis so that you can easily add new hardware, such as cards,
or software. There are a number of user (subscriber) slots into which you can insert cards such as a data card,
subscriber cards and trunk card.
The system supports four types of trunk card that allow easy expansion of the system circuit capacity.
•
GLOOP2 TRK:
•
G4W E&M:
•
PRI4:
•
BRI:
Introduction
16-port loop-start trunk card
6-port 4-wire E&M circuit
ISDN primary rate interface (30 ports)
8-port basic rate interface
1–1
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