The Data Stream Interface is a session layer used to carry this protocol formerly known as what?
Data Stream Interface The Data Stream Interface (DSI) is a session layer used to carry Apple Filing Protocol traffic over Transmission Control Protocol.
X.445 The X.445 is an ITU-T standard for sending X.400 traffic over standard telephone lines, a method known commonly as dial-up. It is also known as the "Asynchronous Protocol Specification" (APS).