Enfizi ENF860 Call Blocker Instruction Manual
Model: ENF860
1. Product Overview
The Enfizi ENF860 is a call blocker designed for landline phones, offering advanced features to manage and block unwanted calls. It operates in two distinct modes: BLOCK mode for filtering unwanted calls and FAMILY mode for allowing only pre-approved contacts. This device requires Caller ID service from your telephone line provider and is compatible with analog telephone lines only.

Image 1: The Enfizi ENF860 Call Blocker device, featuring a digital display and control buttons.
Important Notes:
- The ENF860 is a call blocker only and does not function as a telephone or answering machine. These are not included in the package.
- Ensure your telephone line has Caller ID service and is an ANALOG line for proper functionality.
- In BLOCK mode, some new or variant spam numbers may still cause a single ring. These numbers need to be manually added to the block list, or you can switch to FAMILY mode to restrict calls to only those in your Family List.
2. Setup and Installation
The Enfizi ENF860 Call Blocker is designed for easy installation without requiring external power. Simply connect it to your existing telephone line.
- Locate your telephone wall jack.
- Connect one end of the provided telephone line cord to the 'TEL LINE' port on the ENF860.
- Connect the other end of this cord to your telephone wall jack.
- Connect your landline phone (or answering machine) to the 'PHONE' port on the ENF860 using another telephone line cord.
No mains power is required; the device draws power directly from the telephone line.

Image 2: Diagram illustrating the connection of the ENF860 Call Blocker between the telephone wall jack and your landline phone.
3. Operating Instructions
The ENF860 features a dual-mode operation, allowing you to choose between blocking unwanted calls (BLOCK mode) or only allowing specific calls (FAMILY mode).

Image 3: Visual representation of the ENF860's dual-mode functionality, BLOCK mode and FAMILY mode.
3.1 Switching Modes
A physical switch on the side of the ENF860 allows you to toggle between BLOCK mode and FAMILY mode. No codes are required to switch modes, and all stored data will be retained.
3.2 BLOCK Mode
In BLOCK mode, the device actively blocks calls based on predefined criteria and user-added numbers/names. This mode is ideal for reducing unsolicited calls.
- Default Blocking: The ENF860 comes pre-configured to block International, Private/Withheld, and Out of Area numbers. You can enable or disable blocking for Unavailable numbers.
- Preloaded Spam Numbers: A database of frequently complained-about spam numbers is preloaded into the device.
- Blocking by Number: You can manually add up to 4096 numbers to the NUMBER LIST. This includes blocking specific numbers or entire area codes/prefixes (e.g., all numbers starting with '800').
- Blocking by Name: You can add up to 256 names to the NAME LIST to block calls associated with those names (requires Caller ID name display).

Image 4: Details on automatic blocking settings for various call types in BLOCK mode.

Image 5: The ENF860 display indicating the capacity of the NUMBER LIST (4096 entries).

Image 6: The ENF860 display indicating the capacity of the NAME LIST (256 entries).
3.3 FAMILY Mode (Whitelist)
In FAMILY mode, the ENF860 acts as a whitelist. Only numbers present in your FAMILY LIST will be allowed to ring through. All other calls will be blocked.
- You can add up to 512 numbers to the FAMILY LIST.
- This mode is useful for ensuring only trusted contacts can reach you, especially during specific times or for vulnerable users.

Image 7: Visual explanation of FAMILY mode, showing that only numbers in the FAMILY LIST will ring.
3.4 Managing Call Lists
The ENF860 stores a record of recent calls, allowing for easy management.
- CALL LIST: The device can store up to 32 caller ID records. You can review these calls and easily add numbers from this list to your BLOCK or FAMILY lists.
- Blocking During a Call: If you are on a call and wish to block the current caller, pick up the telephone handset and press the '#' key followed by the '6' key on your telephone keypad.

Image 8: The ENF860 display indicating the capacity of the CALL LIST (32 entries).
4. Key Features
The Enfizi ENF860 Call Blocker offers a comprehensive set of features to enhance your landline phone experience:
- Dual Operating Modes: Switch between BLOCK mode (blacklist) and FAMILY mode (whitelist) as needed.
- Extensive Blocking Capacity: Manually add up to 4096 numbers to the NUMBER LIST and 256 names to the NAME LIST.
- Family Whitelist: Store up to 512 trusted numbers in the FAMILY LIST.
- Preloaded Spam Database: Includes a database of frequently reported spam numbers.
- Automatic Blocking: Blocks International, Private/Withheld, and Out of Area calls by default.
- Prefix Blocking: Block entire area codes or numbers starting with specific digits (e.g., 800, 855).
- Non-Volatile Memory: All stored data (block lists, family lists) are retained even during power outages.
- Easy Installation: No external power adapter required; powered by the telephone line.

Image 9: A summary of the ENF860's key blocking features and list capacities.
5. Troubleshooting and FAQ
This section addresses common questions and issues you might encounter with your Enfizi ENF860 Call Blocker.
Q: Do blocked calls still ring once?
A: No, the ENF860 is designed to cut off blocked calls before your phone rings. The blocked caller ID is recorded in the CALL LIST without any ringing or other indication. If your phone still rings once for a blocked call, please check your wiring to ensure it is correct.
Q: Is the ENF860 compatible with my telephone?
A: The ENF860 is compatible with all analog phones, including regular home phones, answering machines, and cordless phones. It is not compatible with digital phones, such as those used with Google Voice, which typically require a network cable connection.
Q: Will the data on the ENF860 be lost in case of a power failure?
A: No, the ENF860 uses non-volatile storage devices, meaning all your stored data (block lists, family lists, settings) will not be lost when the power is off.
Q: Which mode should I use for the ENF860 Call Blocker?
A: The ENF860's two modes can be switched at any time based on your needs. You can operate it in one mode continuously or switch between modes at different times of the day. For example, use BLOCK mode during the day and switch to FAMILY mode at night or during rest periods to only allow calls from your FAMILY LIST.
Q: Do I need to enter a code to switch modes?
A: No code is required. Simply push the mode switch on the device to the desired position (BLOCK or FAMILY).
Q: Can I stop a call if I am not next to the Call Blocker?
A: Yes, if you are on a call and wish to block the current caller, pick up the telephone handset and press the '#' key followed by the '6' key on your telephone keypad.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | ENF860 |
| Product Dimensions (L x W x H) | 5.83 x 3.46 x 1.05 inches |
| Item Weight | 5.6 ounces (0.35 Pounds) |
| Color | Silver |
| Material | Plastic |
| Power Source | Telephone line powered |
| Compatible Devices | Analog landlines, cordless phones, answering machines |
| Multiline Operation | Single-Line Operation |
| Caller Identification | Yes (required for functionality) |
| Number List Capacity | 4096 numbers |
| Name List Capacity | 256 names |
| Family List Capacity | 512 numbers |
| Call List Capacity | 32 records |

Image 10: Diagram showing the physical dimensions of the Enfizi ENF860 Call Blocker.
7. Warranty and Support
For warranty information, technical support, or any inquiries regarding your Enfizi ENF860 Call Blocker, please contact Enfizi Technology Co., Ltd., the manufacturer. Refer to the product packaging or the seller's information for specific contact details.