The object model space roughly parallels the object model in the Microsoft SIP Class Library as described under the Microsoft.Rtc.Sip reference topic.

Built-in object

Description

Message (MSPL)

Defines a basic SIP message type, and contains the parsed To and From headers along with the content block and the associated transaction. This object serves as the base parent object for the Request and Response objects.

RegistrarEndpoint

Defines a SIP endpoint stored in the registrar database of Microsoft Lync Server 2010.

Request

Inherits from Message.

Defines a SIP request, and includes the method type as well as the request URI.

Response

Inherits from Message.

Defines a SIP response message, and includes the status code, status class, and reason phrase.

SourceInfo

Defines the source user information.

TargetInfo

Defines the target user information.

Transaction

Defines basic information about a SIP transaction.