From the Manufacturer
The GE 29096-GE1 offers a perfect way to retain your favorite old phone and still take advantage of the latest call-screening technology. This small wall-mountable box measures just 4 by 4 inches and contains a three-line LCD. The 70-station memory tracks the name and number of each call, along with the date and time it was received, and provides a unique call sequence number, allowing you to easily transfer data into your permanent home or office records. Compatible with either traditional caller ID or call-waiting/caller ID, you'll always know who's on the phone--even if you're already on the other line. When the unit is purchased new, GE includes a one-year warranty covering parts and service.
Product Description
Caller ID Box - Call Waiting Caller ID