HARMONY WITH INTERIOR: This phone's unique upright style helps it blend seemlessly with your interior, while its sophisticated silver finish exudes luxury If you have Digital Voice or VOIP (Voice Over Internet Protocol), your phone service provider should be sending you a phone adapter. If you want to use your new phone service, you’ll need to plug this adapter into the back of your WiFi router, and the phone into the adapter. After Digital Voice switchover, your telephone sockets in your home won't work. INCOMING CALL AND MESSAGE INDICATOR: A blue indicator elegantly motifies of incoming calls and new messages ELEGANT WHITE ILLUMMINATION: The simple and elegant high level contrast white backlit inner face helps you see the display clearly NUISANCE CALL BLOCK: You can block any specific number, as well as any head string of 2 to 8 digits matching your specified numbers With subscription from your provider you can reduce unwanted calls to keep your personal time from being interupted