The AT&T CL83213 answering system has unsurpassed range. It is redefining long-range coverage and clarity with a unique antenna design and advances in noise-filtering technology. It also features Caller ID Announce where the handset and base audibly announce the name of the incoming caller. No need to find the handset to see who is calling. Makes screening calls that much easier. You can also enjoy a speakerphone that can keep up with your calls. Increase participation by allowing both ends to speak—and be heard—at the same time for conversations that are more true to life.