2.1.3.2 SOAP on TCP
This section specifies a binding of SOAP to TCP for use in .NET Remoting:
The TCP connection MUST be a duplex connection.
The SOAP request and the SOAP response MUST be transmitted through the same connection. The connection MUST be exclusive for a request-response until the response is completely processed by the client.
The payload MUST include enough information outside the SOAP Envelope (as transport frame header) to identify the Server Object and the format identifier.
SOAP Faults have no impact on the TCP Message Frame structure.