第一部分是公司已经拥有的第三方通讯基础设施组件，例如PBX系统，IP电话，以及企业级业务应用系统和目录。

The first element is the third party communications infrastructure components a company has in place such as PBX systems, IP Phones, and enterprise business applications and directories.

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OSGi是Tuscany运行时的基础设施，Tuscany利用OSGi以实行模块化与可扩展性[…]并且对于组件实现与通讯有着许多不同的技术。

OSGi is an infrastructure for Tuscany runtime Tuscany leverages OSGi to enforce the modularity and extensibility [...] with many different technologies for component implementation and communication.

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像OnCast目录这样以。NET编写的组件，它们能与已安装的IIS实例通讯，并以Windows服务的形式运行。

Components such as the OnCast Directory are written in.net and run as Windows Services communicating with the IIS instance installed.

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