The China Telephone Set KXT-531 CID is a feature-packed landline phone designed for clear communication and efficiency. Equipped with Caller ID, a backlit display, and high-quality audio, this model is perfect for home and office use. Its user-friendly design, durable build, and easy-to-use buttons make it a reliable choice for daily communication. Stay connected with the KXT-531 CID and enjoy seamless conversations with enhanced call clarity. key features: 1:Caller ID: Displays the caller's information. 2:50-Item Caller ID Memory: Stores up to 50 caller IDs. 3:Adjustable Handset Volume: Allows adjustment of the receiving volume during a call. 4:2-Line LCD Display: Shows caller information, time and date, dialed numbers, call duration, and call counter. 5:Tone/Pulse Switchable: Compatible with both tone (pushbutton) and pulse (rotary) telephone lines. 6:Ringer Volume Control: Offers Off, Low, and High ringer volume settings. 7:Memory Buttons: Includes M1, M2, and M3 memory buttons for storing frequently dialed numbers. 8:Hands-free: Enables conversation without holding the handset. 9:Redial: Allows quick redialing of the last dialed number. 10:Pause: Inserts a pause in the dialing sequence. 11:Flash: Momentarily disconnects the call and reconnects, often used for call waiting or transferring calls. 12:Hold: Places the current call on hold. 13:Delete: Erases stored information or numbers. 14:Set: Used for setting up various phone functions. 15:Call: Initiates a call. 16:Up/Down Buttons: Navigates through menus and stored data. Pre-dial and Easy Editing 17:Function: Allows users to review and edit the number before dialing.