Panasonic 4 Handset Link to Cell Cordless Phone w/ Text Message Alert KX-TG454 Link-to-Cell make and receive cell phone calls through your Panasonic home phone handsets with Link2Cell feature. It also allows you to have two different bluetooth enabled compatible cell phone conversations simultaneously using your handsets When you receive a text message on your cell phone, the Talking Text Sender Alert makes the sender's name or phone number be announced by your handset using the text-to-speech function Smart function key (NR key) has flash indication and allows you to quickly access for missed call and new messsage. Noice reduction during a call Full duplex hands-free speakerphone on handset. Talking Caller ID with subscription Answering system with message forwarding. You can make an intercom call to all handsets. Any registered handsets can access the phonebook. The base unit gets temporary power supply from a handset in the case of a power outage.