For example, in voice connections of applications such as IP telephony, the protocol negotiated with SDP in a SIP message is often Real-Time protocol (RTP), which is defined in RFC 3550.

例如，在ip电话等语音应用程序连接中，在SIP消息中使用SDP协商的协议通常是实时协议(Real - Time Protocol, RTP)，而此协议在RFC 3550中定义。

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MPEG streams are complex media composed of streams of several layers and real-time Transport Protocol (RTP) is for real-time multimedia data transmission.

MPEG流是由多个层次构成的复杂的媒体流，实时传输协议(rtp)是针对多媒体数据进行实时传输的协议。

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This paper presents the implementation of RTP, a transport protocol which supports the real-time dare transmission in multicast session.

文章介绍了适合实时数据传输的运输协议RTP在多点投递场合的实现。

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