13 DISPLAYING QUERYING AND HELPSCREENSThis chapter contains information about:n Queryingn Displaying helpTo view screen captures of the help screens in the following chapter, seeAppendix B, Alphabetic Command Summary.Overview The Business Modem can display information such as the current settings,product code, and call duration.:Querying Here is a complete list of ATIn commands.Common Inquiry CommandsFor your modem to display CommandCurrent settings ATI4NVRAM settings ATI5Link diagnostics summary ATI6For your modem to CommandDisplay a four-digit product code. ATI0Perform a checksum of the modem’s read-onlymemory (ROM) and display the results. (Thisfunction is used only in factory testing.)The Business Modem should always display thesame number.ATI1