This phone/answering machine makes communication more versatile in your office. Link2Cell syncs up to two smartphones to easily make and take cell calls from handsets. A dedicated Call Block button on the base unit and handset makes it simple to register up to 250 unwanted numbers. With the extended power and signal range of Class 1 Bluetooth, calls can be made and received from virtually anywhere in the office. With text-to-speech technology, talking Caller ID and text ID alerts clearly announce the caller and text-sender ID information. Large, high-contrast 3.4" LCD adjusts forward and back for maximum readability. The illuminated keypad and function buttons can be quickly read in any light conditions. Noise reduction automatically suppresses background interference while enhancing voice tones for clearer, more comfortable conversations. Powerful battery backup system keeps you connected in the event of a power outage.