The KX-TG994 4-Handset Phone with Call Block comes with 14,000 numbers already blocked, and lets you easily screen and block telemarketers and robocallers with the touch of a button. Features such as Link2Cell, Bilingual Caller ID, and voice controls make this phone system an essential companion for home and work. Four handset cordless home phone system Link2Cell technology allows you to Bluetooth-pair with up to 2 cell phones to make and receive mobile calls anywhere in the home; place your cell where signal is optimum and call through the handset Set your talking Caller ID to audibly announce caller information in either English or Spanish from the telephone's base unit and cordless handsets when you can't view the screen One-touch Call Block button lets you easily block nuisance callers. Block 2,000 Callers with Call Block Button. Auto Call Block Preset with 14,000 Numbers