The VTech DS6071 accessory handset is equipped with DECT 6.0 digital technology for improved clarity and advanced security features. This multi-line office phone combines up to two mobile phone lines and one landline phone line into a cordless system. The backlit keypad and LCD display make dialing easy even in low light. A 50-station phonebook helps you keep track of your most important contacts. Other features include Bluetooth, HD audio, trilingual menu support, last 10 number redial, and hands-free calling.