Panasonic KX-TGF374S DECT 4-Handset Landline Telephone Easily pair up to two smartphones to make and receive cell calls with Link2Cell Bluetooth system Get talking ID alerts from Link2Cell handsets when texts are received Block up to 250 numbers with one-touch Call Block on base unit and handsets Includes 3,000 number phonebook, baby monitor and battery power backup See and hear email, social media and other cellphone alerts via Android App