Can some one let me know what Data Protocol we can use for ISO formatted request and response? If any one have worked on this, please assist us.
I would assume that you are referring to ISO8583 (there are a lot of ISO standards :-) )
8583 is not directly supported by DevTest, although some customisation work has been done in the past by, I believe CA services.
You may wish to contact Services via your account team and ask if the extension is available for your particular version of DevTest.