The Panasonic KX-TGD323EB is a simple and refined cordless telephone, which even features an advanced answering system. With up to 16 hours talk time, a shared phonebook and built-in baby monitor, this phone is ideal for working into family life. And what's more, the KX-TGD323EB even features a nuisance call block. A Nuisance Call Blocker means you can do away with unwanted calls. It'll let you block any specified number, as well as any head string of 2 to 8 digits matching your specified numbers or numberless calls. This makes it easier to reduce the number of those unwanted sales calls such as telemarketers. With DECT security, all communications between the handset and base unit are encrypted too. The encryption password is even periodically changed to maintain a high level of security. Additional features: Caller ID display Shared phonebook Power back-up operation Do not disturb mode - each handset can be programmed to prevent ringing during specific periods Advanced answering system - catch answering machine messages when you are at home or away with an alert Eco Mode Plus - the base unit stays OFF until a call comes in or a handset is activated Easy to read 1.8-inch, white illuminated display Curved handset which fits comfortably on the base