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PART II : Request-Response Explained

We noted in the IPC on Mobile Sales 5.0 – PART I : Introduction of this series that each step of communication between MSA and the IPC Server is initiated by MSA sending a request to the server. The server will then process the request and send its reply back to MSA.

The Header

The syntax of one communication step is

Communication      = Header “
” Body

Header          = “<HEAD “ Op “/>”.

Op          = “OP=” command “””.

Status          = “STATUS=” errorcode “””.

Compression     = “ZIP=” “ 1 “””.           (available from IPC2.0b SP5)

Broadcast     = “BROADCAST”” 1 “””.  (available from IPC 2.0c)

Len          = “LEN=” number “””.


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