承载面承载媒体与信令流，信令面完成各种控制功能，应用面是媒体资源服务器。
Bearing plane bears media and signaling traffic, and signaling plane completes all control functions, and application plane means media or resource servers.
承载面承载媒体与信令流，信令面完成各种控制功能，应用面是媒体资源服务器。
Bearing plane bears media and signaling traffic, and signaling plane completes all control functions, and application plane means media or resource servers.
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