The AT&T CL2909 speakerphone with caller ID/call waiting can be used flat on a tabletop or mounted on a wall and does not require AC power for operation. The CL2909 features a speakerphone for hands-free use. The CL2909 also features a 14-number memory for fast dialing and has a directory that can store up to 25 additional numbers with names. This telephone has a caller ID feature that supports caller ID with call waiting service.