Section 4DPT FeaturesContents4.1 Basic Operation ...................................................................4-2Making Calls.........................................................................4-2Receiving Calls .....................................................................4-34.2 DPT Features (A - Z)...........................................................4-44.3 Operator Service Features(— for Operator only) .....................................................4-1384.4 Special Display Features(— for KX-T7235) ...........................................................4-155When setting “Idle Line Preference — Outgoing,” “No Line Preference— Outgoing” or “Prime (CO Line) Preference,” it is not possible to haveaccess to any DPT features after going off-hook. To access DPT features,press the INTERCOM button after going off-hook or press theINTERCOM button directly without going off-hook.In this manual, the default feature numbers are used to describe eachoperation and illustration. Use newly programmed numbers if you havechanged the number by System Programming.All illustrations used in these operating instructions are KX-T7235’s.