In adopting this Report and Order , the Commission amends its rules to require that , either at specific dates in the future or on a phased-in basis , all telephones in workplaces , confined settings ( such as hospitals and nursing homes ) , and hotels and motels be hearing aid compatible ; have volume control ; and have the letters HAC affixed to them .
All telephones in workplaces , confined settings , and hotels / motels must be hearing aid compatible , have volume control , and have the letters HAC affixed to them .