A novel inbred maize line designated PHEHC and seed, plants and plant parts thereof. When a telephone exchange detects that a called number is changed based on a subscriber information database, the telephone exchange sends a prompt message asking for sending a telephone number notification request to a calling telephone. At least one of the scan line has an open defect. The display unit includes at least two display panels facing outward respectively. wherein A represents a tetrazoyl group, Het represents a pyridyl group or a thiazolyl group and X represents various substituents.