Represents a part of a MIME body of a SIP message. A part can represent SDP part or a custom part or a mime/alternative part or a mime/mixed part of a mime body.
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
If a MIME body is represented in the form of a tree with parent and child nodes, this class would represent a node in the tree. For example, the root represents the entire MIME part and the child nodes represent parts contained immediately inside the outer MIME part.
Thus, an intermediate node in the tree will always represent a mime/alternative or a mime/mixed part. The leaves of the tree represent other content types including SDP or a custom part such as text/plain.