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IP Media Server (Global Call) Demo Guide — November 2003 11
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1.Demo Description
This chapter describes the basic features of the IP Media Server (Global Call) demo.
The IP Media Server (Global Call) demo is an object-oriented host-based application that
demonstrates using the Global Call API to build an IP media server, providing voice and fax
services via IP technology. The demo source code can be used as sample code for those who want
to begin developing an application from a working application.
The IP Media Server (Global Call) demo supports the following features:
• Voice service
• CSP barge in
• Configuration file
• Command line options
Note: The IP Media Server (Global Call) demo does not function as a gateway. Therefore, it can only
answer calls from the IP network. Gateway functionality can be added by writing additional
software code within the IP module that will allow it to make outgoing calls to the IP network, and
connecting a gateway to interface with the PSTN.
The IP Media Server (Global Call) demo is a cross-OS demo, designed to eventually run under
both the Windows and Linux environments. Most of the differences in the environments are
handled directly by the programming interface and are transparent to the user. Other differences,
due to inherent differences in the operating systems, are handled by the Platform Dependency
Library (PDL). For more information about the PDL refer to the source code in the pdl_win
directory.