Processing media streams for synchronized output at multiple end points

Method and communication system for processing media streams. A plurality of synchronized media streams are provided to a respective plurality of communication clients at a respective plurality of end points of a communication system. The communication clients output the media streams at the end points, wherein the amount of time required for said providing and outputting of the media streams is different for the plurality of end points. At least one of said providing and said outputting of at least one of the media streams is controlled so that the outputting of the plurality of media streams is synchronized at the plurality of end points. 用于处理媒体流的方法和通信系统。多个同步媒体流被提供至处于通信系统的相应多个端点处的相应多个通信客户端。该通信客户端在该端点输出该媒体流，其中媒体流的所述提供和输出所需的时间量对于多个端点而言有所不同。至少个媒体流的所述提供和所述输出中的至少个被控制而使得多个媒体流在多个端点处的输出得以同步。