Choose from a selection of cordless phone batteries. It is always a good idea to keep a spare battery handy. It takes the right technology, the right people, and a bold vision to be the "The World's Networking Company." For more than 125 years, AT&T has been known for unparalleled quality and reliability in communications. Backed by the research and development capabilities of AT&T Labs, the company's commitment to innovation has made it a global leader in local, long distance, Internet, and transaction-based voice and data services.