Crystal - clear nationwide calling for free and low international rates. Pay only monthly applicable taxes and fees. # 1 rated home phone service for overall satisfaction and value by a leading consumer research publication. Included Ooma HD3 Handset features a 2 color display and full-duplex speakerphone. Pure Voice technology delivers superior voice quality for a consistently great calling experience. Includes unlimited calling in the U.S.: voicemail: caller-ID: call-waiting: 911 calling and text alerts. Download the Ooma Telo mobile app and take your Ooma service on-the -go. Keep your current number for a one-time fee: or choose a new one in almost any area code. Easy install in minutes; works with your high-speed Internet and any home phone. Ooma Telo works with Ooma Smart Security sensors to monitor your home and contact you when activity is detected.