multiSwitch – user manual
© TOPEX 2008 13
Designed in the distributed mode, the software system of TOPEX MultiSwitch has the
hierarchical and modular features. The schematic diagram is shown in Figure 2.
The Device (Protocol) Adaptation Layer is responsible for accessing various external standard
protocols such as H.248, MGCP, H.323 and SS7, converting them to unified internal messages and
sending them to the Call Server for proper processing.
For future protocols, we can implement the upgrading of the system smoothly just by adding
the corresponding software adaptation module to this layer.
As the control core of the system, the Call Server provides unified call control. The Resource
Manager is responsible for allocating various call-related media resources, for example, controlling the
media server to play service tones. The BICC / SIP (Bearer Independent Call Control) module
supports interworking between peer entities (MultiSwitch control equipment).
The Service Manager is responsible for providing interaction between the MultiSwitch control
equipment and the upper-level SCP and Application Server. The Data Manager provides an unified
access interface to the internal database.
The MultiSwitches achieve the same operations like the usual switch equipments and they are
completely transparent to the final user.
A call has three stages until it is ended:
•
The client and client classes identification;
•
The identification of services and routes to destination;
•
The call accomplishment.
The TOPEX MultiSwitch application manages the calls using two concepts: the “
Client
Classes
” and “
Clients
”.
2.2 Architecture
The TOPEX MultiSwitch application is delivered by TOPEX Company in two variants:
•
installed directly on the client’s computer;
•
included into equipment which can be mounted in a rack.
In both cases, the manufacturer offers to the client a software licence key. This licence key is
different for each TOPEX application. It supplies a better protection of the equipment and unauthorized
use of this one.
2.2.1 Client computer
In the first situation, the software application is installed by TOPEX on a computer supplied by
the client. Also, TOPEX install on this computer the Gentoo Linux 2006 operating system required for
the proper operation of the MultiSwitch application.
The computer where the TOPEX MultiSwitch application will be installed must accomplish the
minimum requirements shown below:
•
Pentium 4 processor with 3 GHz frequency;
•
1 GB RAM memory;
•
100 GB hard disk free space;
•
DVD RW.
The system is delivered by TOPEX with a default IP address
192.168.1.20
.
This address is on
a label applied on the client computer enclosure.
