Haw. Code R. § 12-240-14
If provided, emergency two-way communication systems between the elevator and a point outside the hoistway shall comply with ANSI A17.1-1989. The highest operable part of a two-way communication system shall be a maximum of forty-eight (48) inches or 1220 millimeters from the floor of the car. It shall be identified by a raised or recessed symbol and lettering complying with ANSI A117-1986 Rule 4.30 and located adjacent to the device. If the system uses a handset, then the length of the cord from the panel to the handset shall be at least twenty-nine (29) inches or 735 millimeters. If the system is located in a closed compartment, the compartment door hardware shall conform to ANSI A117.1-1980 Rule 4.27, Controls and Operating Mechanisms. The emergency intercommunication system shall not require voice communication.
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Haw. Code R. § 12-240-14