Product Overview
The AT&T BL102-4 DECT 6.0 4-Handset Cordless Phone System is designed for home use, offering advanced features such as unsurpassed range, smart call blocking, caller ID announcement, audio assist, and an integrated answering machine. This system provides clear communication and enhanced control over incoming calls.

Image: The AT&T BL102-4 cordless phone system, showing the main base unit with one handset docked, and three additional handsets with their charging cradles. The system is silver and black.
Setup
What's in the Box
- 1 Base Unit
- 4 Cordless Handsets
- 3 Handset Chargers
- 4 AC Adapters
Initial Installation
- Connect the Base Unit: Plug the base unit's AC adapter into a power outlet and the telephone line cord into a telephone wall jack.
- Charge Handsets: Place each cordless handset into its respective charging cradle (base unit or auxiliary charger). Ensure the handsets are properly seated for charging. The battery icon on the handset display will indicate charging status.
- Initial Charge: Allow handsets to charge for at least 16 hours before first use to ensure optimal battery performance.
Operating Instructions
Making and Receiving Calls
- To make a call, press the PHONE/FLASH button and dial the number.
- To answer a call, press the PHONE/FLASH button when the phone rings.
- To end a call, press the OFF/CANCEL button.
Unsurpassed Range
This cordless system utilizes a unique antenna design and advanced noise-filtering technology to provide extended range and clarity, allowing you to use your phone throughout your home and yard.

Image: Diagram illustrating the extended range of the AT&T cordless phone system, showing a handset being used far from the base unit within a home environment.
Smart Call Blocker
The Smart Call Blocker feature automatically blocks robocalls from ringing through. You can also permanently blacklist any unwanted number with a single touch. The call block directory can store up to 1,000 name and number entries.

Image: Close-up of the handset keypad highlighting the 'CALL BLOCK' button, with text explaining the Smart Call Blocker functionality.

Image: A finger pressing the 'CALL BLOCK' button on the handset, demonstrating the one-touch blocking feature.
Caller ID Announce
The handset announces the name of the caller, allowing you to screen calls without needing to look at the display. This feature helps you decide whether to answer or block the call.

Image: A handset on its base, with a speech bubble indicating 'Mr. Johnson is calling...', demonstrating the Caller ID Announce feature.
Digital Answering System
The integrated digital answering system can record up to 22 minutes of incoming messages, outgoing announcements, and memos. It includes a voice guide for easier setup and allows for remote access and message retrieval from both the handset and base.

Image: Close-up of the base unit's answering system controls, showing the LED message counter displaying '12' and buttons for play/stop, repeat, and skip.
Display and Keypad Features
- Large 2-inch Screen: High-contrast text on the extra-large screen ensures easy readability of caller ID and call history.
- Big Buttons & Lighted Keypad: Enlarged font and extra-large, lighted handset keypad facilitate easy dialing, especially in low-light conditions or for users with visual impairments.
- Visual Ringer: A bright red visual ringer makes incoming calls easily noticeable throughout your home.

Image: Close-up of the handset's large 2-inch screen, showing clear text display for incoming calls.

Image: A hand pressing one of the large, clearly labeled buttons on the handset keypad.

Image: Top portion of the handset showing the bright red visual ringer illuminating during an incoming call.
Handset Speakerphone and Audio Assist
- Full-Duplex Speakerphone: The built-in speakerphone on the handset allows both parties to speak and be heard simultaneously, providing more natural conversations.
- Audio Assist: Instantly boost call volume by pressing the Audio Assist button, enhancing clarity for users with hearing difficulties.
- Intercom: Handset intercom functionality facilitates communication between handsets within the system.

Image: Two handsets, one on the base and one on a charging cradle, with a speaker icon indicating the speakerphone function.

Image: A woman using the handset, with a close-up highlighting the 'AUDIO ASSIST' button on the side of the phone.
Maintenance
Battery Care
The product contains nickel-metal hydride rechargeable batteries. To maintain optimal battery life and performance:
- Always return the handset to its charging cradle when not in use.
- Avoid exposing batteries to extreme temperatures.
- If the phone will not be used for an extended period, remove the batteries.
Cleaning
Wipe the phone and base unit with a soft, damp cloth. Do not use cleaning sprays or harsh chemicals.
Troubleshooting
For common issues such as no dial tone, static, or charging problems, please refer to the comprehensive user manual. Many issues can be resolved by ensuring all cables are securely connected and handsets are properly charged. If problems persist, contact customer support.
Specifications
| Model Number | BL102-4 |
| Product Dimensions (Base) | 3.81 x 6.04 x 7.21 inches |
| Item Weight | 2.97 pounds |
| Batteries | 4 Product Specific batteries (included) |
| Color | Silver/Black |
| Telephone Type | Cordless |
| Material | Metal |
| Power Source | Corded Electric |
| Dialer Type | Keypad |
| Answering System Type | Digital |
| Recording Capacity | 22 minutes |

Image: Diagram showing the height, width, and length dimensions of the base unit.

Image: Diagram showing the height, width, and length dimensions of a single handset.
Warranty and Support
For detailed warranty information and technical support, please refer to the official AT&T product documentation or contact AT&T customer service.
- User Manual (PDF): Download Here
- Installation Manual (PDF): Download Here





