The ReInviteWithSessionDescription method allows applications to include a session description with a re-Invite request.

HRESULT ReInviteWithSessionDescription(BSTRbstrContentType,


  • bstrContentType
    [in] The content type for the session description of the re-Invite request.
  • bstrSessionDescription
    [in] The session description that is included in the re-Invite request.
  • bstrlCookie
    [in] An application-provided cookie, which can be used for pairing the notifications with the information sent. The application should guarantee a unique value for this cookie.

Return Values

RTC methods may return an RTC_E_ constant.

Value Meaning
RTC_E_INVALID_SESSION_STATE The session state is not valid.
RTC_E_MEDIA_ENABLED The media stack is enabled.
E_FAIL Insufficient memory to perform this operation.


The content type is application specific. Applications should ensure that the called party is able to decipher the content type of the session description.


Redistributable: Requires Rtcdll.dll on Windows 2000, Windows XP, and Windows Server 2003.
Header: Declared in Rtccore.h.
Library: Included as a resource in Rtcdll.dll.
GUID: IID_IRTCSession2 is defined as 17D7CDFC-B007-484c-99D2-86A8A820991D.

See Also

IRTCSession2, Session Negotiation, Sen a Reinvite on a Connected Application Session