https://learn.microsoft.com/en-us/dotnet/api/microsoft.rtc.collaboration.instantmessagingcall.isimmediateautoacceptneeded?view=ucma-api
InstantMessagingCall.IsImmediateAutoAcceptNeeded Property (Microsoft.Rtc.Collaboration) | Microsoft...
Gets whether the call should be automatically accepted. immediately upon receipt.
propertymicrosoftrtccollaboration