AT&T 435 Caller ID Box Call Waiting Display 50-Call Memory One-Button Dial

AT&T 435 Caller ID Box Call Waiting Display 50-Call Memory One-Button Dial

The AT&T 435 is a standalone Caller ID unit that connects between your telephone and the wall jack to display incoming caller information on its built-in LCD screen. It stores a log of the last 50 incoming calls, shows call waiting information when a second call arrives, and lets you dial back any number in the call list with a single button press.

Specifications & What's Included

• Brand: AT&T
• Model: 435
• Display: LCD screen showing caller name, number, time, and date
• Call Memory: Stores up to 50 incoming calls
• Call Waiting Display: Shows caller ID for incoming calls while on an existing call
• New Call Indicator: LED indicator light for new/unreviewed calls
• One-Button Dial-Back: DISPLAY DIAL button dials the selected call list entry directly
• Front Panel Buttons: NEW CALL, CALL LIST (up/down), OPTIONS, DISPLAY DIAL, REMOVE, CALL WAITING
• Rear Connections: DC POWER jack, TEL SET RJ-11 port (to phone), TEL LINE RJ-11 port (to wall)
• Color: White
• Form Factor: Desktop
• Includes: Phone cord shown in photos
• Not Included: AC power adapter

Applications

The AT&T 435 is designed for use with standard analog landline telephone service that includes Caller ID and Call Waiting Caller ID features provided by the telephone carrier. It sits between the wall jack and a corded or cordless telephone base, intercepting the Caller ID signal and displaying it on its own screen while logging each call. Units like this were widely used in homes and small offices during the late 1990s and early 2000s when analog landline service was the primary voice communication platform. The separate Caller ID box format was common before the feature became built into nearly all telephone handsets, and these units remain useful anywhere a standalone call log with dial-back capability is needed on an existing analog line.