Ohio Revised Code Title I. State Government § 128.24

(1) Each operator of a multiline telephone system that was installed or substantially renovated on or after the effective date of this section, shall provide to the end user the same level of 9-1-1 service that is provided to other end users of 9-1-1 within the state.  That service shall include the provision of either of the following, which shall satisfy the requirements of division (A)(3) of this section:

(2) Each operator of a multiline telephone system that was installed or substantially renovated on or after the effective date of this section, shall provide an emergency-response-location identifier as part of the location transmission to the public safety answering point, using either legacy private-switch automatic location identification or next generation 9-1-1 methodologies.

(3) Each operator of a multiline telephone system that was installed or substantially renovated on or after the effective date of this section, shall identify the specific location of the caller using an emergency response location that includes the public street address of the building from which the call originated, a suite or room number, the building floor, and a building identifier, if applicable.