Caller Id Box for Landline Phone Number Lcd Display with Call Blocker - Stop Unwanted Calls, Robocalls, Spam, Telemarketers

I bought this caller ID box to replace my old caller ID box that was failing after decades of use. The display of the phone number and other information of this new caller ID box is nearly identical to the display of my old one in terms of size, brightness with lack of background lighting, and information given. This identical nature of the display with my old caller ID box made me happy because I was happy with my old one. My old one was powered by 3 AAA batteries. The batteries usually lasted one year. This new one has no batteries. It is plugged in. The pro of no batteries is that it costs less to operate (because you don't have to buy batteries) and there is no risk of a battery leaking and destroying the caller ID box battery grips. The failure of my old caller ID box was due to the prongs that held the batteries becoming bent after years of use and not making a tight enough grip on the batteries to power the ID box. The con of no backup battery (or batteries) is that if there is a power failure, all information would be lost. For me, that is a small con because I would have to remember to check the battery every 6 or so months to be sure it is not leaking. If the battery is not checked for years, it is likely to have leaked and the backup would fail in the event of a power failure. I HAVE ONE COMPLAINT. The product description is incorrect and misleading. The product description says that the caller ID box is 5.6 inches by 4 inches by 1.8 inches. The caller ID box is actually 2.5 inches wide by 3 inches long by 1.25 inches high at the top and 9 sixteenths of an inch high at the bottom (the caller ID box does not lay flat). The dimensions given in the product description are the dimensions of the box in which the caller ID box is shipped. Those given dimensions made me hesitant to buy the product because I would have trouble fitting it into the space available next to my phone. The actual dimensions are very close to the dimensions of my old caller ID box and that made me happy BUT inaccurate and misleading information is bad and wrong.

This is for blocking callers on land line phone service when you have caller ID service. For cell phones, use an applicable cell phone application. The Amazon description is a bit misleading, as the caller ID function (which is what I need) is not as good as a strictly "Caller ID" box, so if it's caller ID you want, avoid these Blockers. For caller ID with this box, (I used "parallel" connection to phone line), the display is on only while the phone is ringing. After I or answering machine picks up, the caller ID disappears, but it remains in memory to look at after the call. The actual ID is a bit hard to read, as the numbers are tall (a half inch), but only an eighth inch wide. And there is no date or time displayed either during the call, or on the display from memory. Also the actual brand is Pearl, not SBC Snet.

Update 7/20/2019I purchased my caller ID in December 2018. It no longer works! At first, it failed to display SOME incoming calls. Now it does nothing--no name, no phone number are displayed. Months ago, it stopped displaying the LED light to alert user to incoming calls. I was informed that the unit is NO LONGER UNDER WARRANTY. It says a lot about a product when the manufacturer won't warrant a produce even a year.MY ADVICE: Send 10.00 more and get a decent product. This one offers nothing.The print is too small and too weak to easily read. If the entire unit were 1/2" longer and wider, the numbers would be so much easier to read, and the size of the device wouldn't be dramatically changed.My unit sits on my desk, flat. But it is so light that the three wires pull it off the desk. I mounted my unit on a block of wood.Updated Ma:y 12, 2019: Now my unit has stopped working altogether. I have tried resetting it. I've verified all the connections are good. And I have noticed that, although it is LESS THAN A YEAR OLD, it is OUT OF WARRANTY.So I've adjusted my overall rating to ONE STAR. I would have chosen ZERO STARS if it had been possible.DON'T WASTE YOUR MONEY, FOLKS! This unit is junk, and the manufacturer must agree since they offer such a weak warranty,

This Caller ID unit I received does NOT have a battery back-up, as was described (and still is) in this item's page. When AC power is disconnected, all Caller ID history data is lost. It works; however, it would have been nice to have the product match the description, so I could have picked another unit that actually HAS a battery or non-volatile memory backup. So if you plug this into a UPS, or don't care if the previous-caller data is lost, this will work for you.Here's an odd feature: When a call comes in that is *not* blocked at our call-blocker, there are TWO Caller ID entries for that exact name/number. If the call is blocked, there is only ONE Caller ID entry. So I know at a glance if some telemarketer got his call dropped (ha-ha!) It just means that when reviewing calls, I need to delete the duplicates (sometimes both, since we wanted/expected that call) to save space.PROs: Small form factor. Simple controls. A green LED flashes when there's a new call that you haven't reviewed. Red message-waiting light.CONs: AC Adapter plugs into wall. No battery backup, all data lost upon unplugging. Unblocked call entries are duplicated.