Hi there
From what i´ve understood streamed MTOM with soap 1.2 is not possible currently with WCF because of the following limitations:
Streaming is only allowed for BasicHttpBinding/TcpBinding/NamedPipeBinding
BasicHttpBinding is by default Soap 1.1, not possible to change without creating a custom binding
Do anyone know a way around it? Or over it, or under it! Anything! =)
(only have access over clientside)