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Installation and Reference Manual
System Architecture
Installation and Reference Manual v3.2/0410/6
15
System Architecture
The system operates entirely around a LAN/IP network environment, eliminating any previous geographic
constraints imposed upon similar systems. The system is constructed with several distinct and discrete
components, all physically independent and operating symbiotically to provide a single seamless system.
Working with the System
All maximiser modules are linked via TCP/IP. Each module is a host on the network with its own IP
address. Therefore each module can be connected via standard CAT 5 cabling, leased line, or Wireless
LAN networking in the case of the Phone Module and the PCS 400. This allows for multi-site networking
with the advantage of only one system to configure & manage – from anywhere. The configuration of
the system is stored on the database which resides on each Call Server; this can be accessed via
Manager. Manager is a web-based application so can be run from any web browser that has an IP
connection to the system.
As the maximiser system is a purely IP system all calls are carried over IP therefore H.323, the industry
standard for Voice over IP, is supported. This means that the Call Server acts as the H.323 Gateway. A
gateway is responsible for translating one transmission type into another, so in the case of the Call
Server, for example, it will translate calls received via ISDN so they can travel over an IP network and vice
a versa. The Trunk Module will also provide this functionality. The Call Server also acts as the H.323
Gatekeeper and is responsible for controlling the access into and out of the network – phone
registration, call routing and call logging etc. Quality of Service, also managed by the Call Server, will
ensure that Voice packets have priority over Data packets. This will make sure that a conversation is not
broken up or interrupted.
The configuration of the system is stored on the LDAP database held on the hard disk contained within
the Call Server. LDAP (Lightweight Directory Access Protocol) is the protocol used to store information on
a database that can be searched and queried over a network by any number of users. In the case of the
maximiser system LDAP allows the configuration to be viewed and amended via Manager and allows
users to view telephone directories and contact information via a PCS 580, 570/560, PCS 410/410, PCS 100,
PCS 60 and PCS 50. As LDAP is the industry standard for accessing databases future applications will
include access to third party databases.
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