Digitone ProSeries 3 Call Blocker Automatic SPAM Blocking for Landline Phones - Easy Setup One Button Blocking of RoboCalls

I bought this device as I had an obnoxious caller calling about 20 times a day from an "800" number that kept changing every time. But the caller kept showing up as "800 Service" all the time, so I was going to use the block by name function to block this caller. I did a fair amount of research and decided this was the best device with a lot of options for blocking unwanted callers. Funny thing, the day I got the device is the day that these calls just stopped. So, I put the device in a drawer and will have it ready next time I am in this situation.

It works!!! I have VOIP and I am so happy to have nuisance calls blocked. It works the way it's supposed to and it's simple to use. The instructions could be better written, but that is my only complaint.

The unit basically works, but I have two issues. The first is with the product, which is supposed to be able to terminate a call and block the number with the touch of a button. That basic function simply does not work on my unit and I don't know why. I can later go back into the call history and manually block the number, but the instructions clearly state that I shouldn't have to do that. The second issue is with the seller who provides a single means of contact. An answering machine with no greeting and no acknowledgment to the customer that the message has even been received. It seems pretty Mickey Mouse for an American company with a very respectable product line. ( I also got no callback on my call for help). There is no chat, no customer support email address, or even a user forum to turn to. Frustrating.

I bought this because of the never ending cavalcade of robocallers, scams, etc. I was seeing anywhere from 10 to as many as 50 calls in a day. The weekends would see the count drift lower, but not completely stop. First, this was NOT a plug and play and then I was protected setup. You should expect to do some setup. But once I had it set properly, it became a rare thing for one of those unwanted calls to get through. The unit just sits and quietly ignores the calls I don't want, and passes through the calls I want. Specifically, I had to add known good exchanges to the allow list. I also added people with numbers from exchanges that are not local. Then I set the DigiTone to block or reject all calls that are not explicitly on the allow list. And the method I chose it to just let the call ring indefinitely. Another option is to have the DigiTone answer the call and then hang up. I decided this latter method was not the best choice, as having anything answer the call indicates the number is alive and active. One note: Pay attention to the phone number of allowed callers. I was missing the leading 1, the country code for USA. Once I added the 1 plus the allowed call numbers and exchanges, the unit worked as expected. Even the samples in the book do not show the 1 as part of the numbers. Without that 1, the DigiTone did not recognize my allowed numbers. Pay attention to how the numbers are displayed in the caller ID. That's it. Once the allow list was setup, the DigiTone started ignoring the relentless calls and my phone only rings when I have a legitimate call. Again, a very slim few did manage to get through, But there have been so few of those I can count them on one hand, without exaggeration. In short, I recommend this and would buy another if needed.

It worked for about a year and now it's letting calls through. I guess the bad guys figured out how to I defeat it

Great system that really works and blocks most unwanted calls.

Pros: I bought this because it can block calls based on Name in addition to Number, to catch robo-callers using rotating numbers. It has a large number of configuration options. After installing this unit I stopped getting SPAM calls. Cons: After a few weeks I realized that I was not getting ANY calls. I called our landline from my cellphone and saw that the Digitone was displaying garbage characters (gibberish as another commenter here says) instead of the correct caller ID. Further testing revealed that this was true of all incoming calls. I reset the unit to default settings (Reset DPS3 User Settings Code 99#*) and caller ID functionality was restored. We'll see how long that lasts. The user interface needs improvement, i.e. an optional web interface. It's difficult to grasp all the different settings, options, lists, and filters through the unit's tiny LCD display. The documentation requires serious effort to decipher. If you read the section "New Processing Levels", you could easily be led to believe that your designated VIP numbers will always ring through, but that is not necessarily the case due to how processing order works. In summary, this device can be very effective for those willing to invest time in understanding and maintaining its configuration.

My phone has rung off the hook with calls from telemarketers despite using this product. The only saving grace for it is that it lets me block the numbers once they call. Definitely not what I thought I was buying.