lib/ews/soap/exchange_web_service.rb
def get_room_lists
      req = build_soap! do |type, builder|
        if(type == :header)
        else
          builder.room_lists!
        end
      end
      do_soap_request(req, response_class: EwsSoapRoomlistResponse)
    end
def get_room_lists
      req = build_soap! do |type, builder|
        if(type == :header)
        else
          builder.room_lists!
        end
      end
      do_soap_request(req, response_class: EwsSoapRoomlistResponse)
    end
Gets the room lists that are available within the Exchange organization.
 @see http://msdn.microsoft.com/en-us/library/aa563465.aspx