Caller Id Box for Landline Phone Number Lcd Display with Call Blocker - Stop Unwanted Calls, Robocalls, Spam, Telemarketers
Quick take
This caller ID box adds an LCD number and name display to landline phones that lack caller ID or have limited blocking. It also includes a one-touch red BLOCK button to permanently block an incoming unknown call and a BLOCK NO CID option to auto-block private or unknown numbers. The main tradeoff is usability in dim rooms because the display is not backlit, and backup power expectations can be confusing for some buyers.
Pros and cons
Pros
- Large caller ID blocking capacity (up to 4,000 numbers) with non-volatile memory behavior intended to keep blocked entries when unplugged.
- Simple blocking workflow, press the red BLOCK button during an unknown call to add it to your block list.
- Displays caller number and name, plus clear visual indicators for missed calls (green) and voicemail (red).
- Works as a compact plug-in unit for landline phones, including many VoIP setups.
Cons
- No backlighting, so the LCD can be hard to read in a dark room.
- LCD text can feel small for some users, which may matter if you have visual comfort needs.
- Battery backup can be a buyer expectation point, with some buyers reporting loss of stored information after power loss.
- Using it with an answering machine may require compatible jack setup, since some users report limited connection options.
What buyers think
Buyer-review evidence points to a generally straightforward experience: the unit is easy to plug in, time and date can be set automatically, and the display typically shows who is calling and when. Multiple buyers specifically like the LED call and voicemail indicators (green for missed calls and red for voicemail), describing them as quick to notice when you walk in. On the downside, review themes mention limited readability, including a small, non-backlit display that can be difficult in low light. Reliability feedback is mixed, with at least some reports that the device stopped working after a period of use, so long-term durability can be a consideration. Finally, some buyers say backup power behavior is not what they expected, particularly around what happens to stored information after an outage.
How this landline caller ID box and call blocker works
This is a dedicated caller ID display you plug into your home phone line, meant for corded landlines (and many VoIP arrangements). When calls come in, it shows the caller’s number and name on a small LCD. For unwanted calls, it focuses on speed and simplicity: you can manually block an incoming unknown/private call by pressing the red BLOCK button, and you can also enable a BLOCK NO CID feature to automatically block unknown and private numbers.
Key features that matter when you are shopping
Call blocking capacity and block-list retention
The unit is designed to store a large list of blocked numbers (up to 4,000). It also uses non-volatile memory to retain blocked numbers when unplugged. That said, some buyers report that power loss can affect stored information, so if you frequently have outages, treat backup behavior as something to verify for your specific use case.
Unknown/private call auto-block
Turning on BLOCK NO CID adds another layer beyond manual blocking. If you receive lots of calls where the caller ID is unavailable or marked private, this feature is meant to reduce how often those calls ring through.
Clear at-a-glance indicators
Instead of requiring you to stare at the screen every time, the LEDs provide quick status. Buyers commonly highlight the green blinking light for missed calls and the red blinking light for voicemail waiting.
Display readability and viewing comfort
The LCD shows caller name and date and time, and the brightness is adjustable. However, the unit does not have backlighting. If you answer calls in a dim room, you may need additional lighting, and the screen size may not be ideal if you prefer larger text.
Power and setup expectations
It is powered from the phone line with corded electric power (and includes battery backup behavior). Some buyers found setup simple, including automatic time and date setting after the first call. Where buyers run into frustration is when they expect battery backup to prevent any loss during outages, or when connecting it alongside an answering machine requires more than a single telephone jack in that room.
Pros and cons, plain English
Good fit for
- People who want a standalone caller ID display for a landline, especially if your phone base does not show caller ID or has limited blocking.
- Anyone who wants a fast block workflow (press a button when an unwanted call comes in) rather than managing a complicated app or web portal.
- Households that rely on simple visual cues for missed calls and voicemail.
- Users who receive calls from unknown or private numbers and want auto-block enabled.
Not ideal for
- Shoppers who often use their phone in low light, because the display is not backlit.
- Buyers who want a large, easy-to-read screen for distant viewing.
- Anyone who has frequent, extended power outages and specifically needs guaranteed preservation of settings and history during outages.
- Users trying to connect this in the same location as an answering machine without confirming the available jack setup.
Price and availability
The price can vary, but this caller ID box sits in the typical “basic landline upgrade” category: cheaper than many smartphone-based call screening solutions, but more limited to what your home phone line provides. If you are deciding whether it is worth it, focus on whether you need physical on-line blocking and an LCD display more than you need advanced call labeling or mobile alerts.
Is it worth it? A practical verdict
This model makes sense if you want a simple, dedicated caller ID display with an easy call-blocking button and a large block list for landline calls. It is especially attractive for home users who appreciate quick LED signals and want to reduce nuisance calls without complicated setup. If you care deeply about night-time readability or you need robust behavior during power outages, the non-backlit LCD and mixed backup expectations are the main reasons to look closer at fit before you buy.
FAQ
How many numbers can it store in the block list?
It is designed to store up to 4,000 unwanted phone numbers in its caller ID memory for blocked entries.
Can I block unknown or private calls automatically?
Yes. There is a BLOCK NO CID feature that is intended to automatically block calls with unknown or private caller ID.
Does it work with VoIP?
It is intended to work with most landlines and VoIP services, but compatibility can depend on your specific phone setup. If your VoIP adapter supports standard caller ID signaling, it is typically a good match.
Is the LCD backlit?
No. The display is adjustable, but it does not have backlighting, which can make it harder to read in a dark room.
What does the green and red light mean?
Buyers commonly describe a green blinking light for missed calls and a red blinking light when voice mail is waiting.
Will it keep blocked numbers when unplugged?
It uses non-volatile memory behavior intended to retain blocked numbers even when unplugged. Power-loss behavior may still be a concern for some buyers, so consider your outage frequency.
Compare with alternatives
If you are deciding between caller ID options, think in terms of priorities. A basic caller ID box like this is best when you want physical display and button-based blocking for a home phone line. If you need large, high-contrast screens for night use, or you want blocking that happens at the network or router level, you may prefer different categories of call screening devices. If your goal is mostly to identify callers, an LCD-only caller ID display might be enough. If your goal is maximum nuisance-call reduction, you may want to look for solutions that combine caller ID with stronger auto-screening, but those may require a different setup than a plug-in landline box.
Specifications
| Product Title | Caller Id Box for Landline Phone Number Lcd Display with Call Blocker - Stop Unwanted Calls, Robocalls, Spam, Telemarketers |
|---|---|
| Category | Electronics > Accessories & Supplies > Telephone Accessories > Caller ID Displays |
| Brand | SBC Snet |
| Manufacturer | SBC Snet |
| Model Number | 4330243229 |
| Color | White |
| Material | Plastic |
| Item Weight | 7.04 ounces |
| Power Source | Corded Electric |
| Answering System Type | Digital |
| Compatible Devices | Landline Phones |
| Multiline Operation | Single-Line Operation |
| Is there Caller ID | Yes |
| Recording Capacity | 22 Minutes |
| Enclosure Material | Plastic |
| Item Dimensions | 5.6 x 4 x 1.8 inches |
| Telephone Type | Corded |
| UPC | 603688000258 |
| Mfr Part Number | 1 |
| Unit Count | 1.0 Count |
| Item dimensions L x W x H | 5.6 x 4 x 1.8 inches |
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