求翻译：SIP系统的基础协议是SIP协议和用于SIP消息体的绘画描述协议。基于文本的SDP媒体描述可以作为消息体嵌入在SIP数据包中，在呼叫建立的同时完成媒体信道的建立。是什么意思？

sip the basis of agreement sip protocol sip message body painting describes the protocol. Text-based sdp media description can be used as the body of the message embedded in sip packets, while the call setup to complete the establishment of media channels.

The foundation of the System Agreement SIP SIP protocol and is used for the message body painting SIP description protocol. Text-based SDP media description can be used as embedded in the message body in SIP packet, in the same time a call for the media channel.

The SIP system foundation agreement is the SIP agreement and uses in the SIP news body the drawing description agreement.Based on the text SDP media description may take news body inserting in the SIP data packet, completes the media channel during call setup the establishment.

SIP system based protocol is SIP protocol and SIP message-body painting description of Protocol. SDP media descriptions can be used as the message body of the text embedded in the SIP packets, establishment of complete medium channel while in call setup.

正在翻译，请等待...