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Assembly: Microsoft.Office.Interop.UccApi (in microsoft.office.interop.uccapi.dll)
A signaling request is also a signaling message. All the features and functionalities defined in IUccSignalingMessage are automatically available on an IUccSignalingRequest instance because IUccSignalingRequest inherits from IUccSignalingMessage.
Win32 COM/C++ Syntax
interface IUccSignalingRequest : IUccSignalingMessage