VTech CS6829-3 3-Handset Cordless Phone System with Caller ID/Call Waiting, DECT 6.0 Digital Technology, Digital Answering System, Caller ID/Call Qaiting&mdash;stores 50 Calls, Volume Control DECT 6.0 digital technology, Digital Answering System Caller ID/call qaitingstores 50 calls, Full duplex handset speakerphone Backlit keypad and display, ECO mode power-conserving technology Conference between an outside line and up to 2 cordless handsets Trilingual promptschoose between English, Spanish and French