Two-line phone lets you conveniently make calls directly from your Outlook contact list. Plus, when you receive a call, the caller information will pop up on your PC screen if their contact information is stored. LCD features a tilt function that lets you easily adjust the angle of the screen so you can clearly see who is calling. Large, bold font size makes the caller ID information crisp and clear so you can quickly see who's calling. Link up to four cell phones to make and receive calls with your mobile device. Noise reduction lets you suppress background noise around the caller while simultaneously enhancing their voice making for high-quality audio. Powerful battery back-up system keeps you connected when the power goes out. One-touch dial option lets you store your most frequently dialed phone numbers to make a call at the touch of a button.