IP上语音和视频聚合的一个主要基础部分是会话发起协议(SIP)。

One main element in the foundation of voice and video convergence on IP is the Session Initiation Protocol (SIP).

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这带来了如何向语音通道组件发起SIP(会话发起协议，Session Initiation Protocol)调用的问题。

This leads to the question of how to initiate the SIP (Session Initiation Protocol) call to the voice modality component.

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它为企业级应用程序提供了运行时环境，包括J2EE应用程序、Portlet应用程序和会话发起协议(Session Initiation Protocol, SIP)应用程序。

It provides a run time environment for enterprise class applications, including J2EE applications, portlet applications, and Session Initiation Protocol (SIP) applications.

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