4-56 System Programming[500] 4.2 System ProgrammingSelects the destination of an incoming outside call via the DISA feature when you select“DISA 1” or “DISA 2” in programs [414]-[416] “Outside (CO) Line Mode–Day/Night/Lunch”, Without AA (auto attendant) or With AA . If you select “With AA”,assign the next program [501] “DISA Built-in Auto Attendant”.Without AA: Available destinations are: extension numbers assigned in program[009] “Extension Number Assignment”, line access numbers (9 or 0, 81through 86) and the operator number (0 or 9).With AA: Available destinations are: numbers available in the “Without AA” mode,and numbers (0 through 9) assigned in program [501].Default Without AA• For example: in the “With AA” mode, if a number is not dialed within the programmedtime in [517] “DISA AA Wait Time” after dialing 1, the call is received at the DISAbuilt-in auto attendant number 1.• In the “ With AA” mode, if 0 and/or 9 are not assigned in program [501], the systemrecognizes them as a line access number and/or operator number.• Feature ReferenceSection 3, FeaturesDirect Inward System Access (DISA)005[500] DISA Incoming Dialing Mode SelectionNEXT SELECT STORE END(Without AA/With AA)!!+