Brother Standard Perforated Roll Bluetooth connection to cell phone gives you a virtual 3rd line to help you manage your business communications more effectively. Conference between cell & landline provides greater flexibility for all your conference calls. Call Waiting/Caller ID shows name and number of who's calling even when you're on another call. Keeps the last 99 calls in memory. Visual line status indicator tells you instantly which lines are in operation. Full-duplex speakerphone provides natural simultaneous 2-way conversation.