With the advice of the council, the board shall plan, establish, administer, and promote a statewide program to provide dual party relay service as follows:
 1. The board may enter into the necessary contracts and arrangements with private entities to provide for the delivery of relay service.
 2. The relay service, to the extent reasonably possible, shall allow persons with communication disorders to use the telephone system in a manner and at a rate equivalent to persons without communication disorders.
 3. The relay service may be provided on a stand-alone basis within the state, with other states, or with telephone utilities providing relay service in other states.
 4. The board may employ additional personnel, pursuant to section 476.10, to plan, establish, administer, and promote the relay service.