Calculate Guest Rooms with Communication Features How many accessible guest rooms with communication features do you need? Try out the calculator! And remember… You can find more information about accessible transient lodging in the 2010 ADA Standards Section 224.4 or by looking at our Accessibility Checklist for Hotels, or by checking out our Accessibility for People with Disabilities in Hotels and Places of Lodging fact sheet. Enter Total Number of Guest Rooms Provided: