The cruel, cruel Demon Dialer

by Mike

Demon Dialer
You may not know this, but I’m a big fan of the daily gadget podcast known as Daily Giz Wiz. It’s a show that covers the not-so-covered gadgets; you’ll hear about gadgets you never thought existed. Now, to end this little plug, let me just say that if you like this site and like a good laugh, check out the Daily Giz Wiz. I brought this up because, on a recent episode, they covered a gadget from the past, known as the Demon Dialer. Take a guess at its cruel, cruel purpose in life.

If you didn’t guess a device that could redial a certain number up to 25 times a minute (yes, minute!), you should’ve, as that’s exactly what the Demon Dialer does. Granted, there are real reasons to use this device, but the malicious ones come to mind a lot quicker. :) This device was used when you would call some big company and often get the busy signal, so the Demon Dialer would simply keep calling until you got through. At that point, it would alert you so that you’d pick up the phone and start yalking. Although the Demon Dialer has been discontinued, there’s a product known as the PowerDialer that’s exactly like it– it keeps calling until it gets through.

If you really want the modern-day Demon Dialer, it’s going to cost you $250. I’d rather just wait the 10 minutes it takes to get through, especially when it means saving $250.

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10 reviews or comments

anononymous Says: July 15, 2007 at 12:36 am

Just for you to know..
this devise is forbidden on most telephone network as any device must “burn” a number if it fails too many calls. That’s to prevent modem or fax from annoying people if the numbe is wrong.

Your telecom operator should provide you with the CCBS service (call completion n busy subscriber). You dial a service code (*90# for me) and hang up. When your correspondant becomes available, the network calls him and calls you and put you in communication.


Latest Gadget Images » Coolest Gadgets Says: July 15, 2007 at 6:06 am

[…] « The cruel, cruel Demon Dialer […]

Mike Says: September 26, 2009 at 10:29 am

What Crap that comment is!

Sure, your telco wants you to PAY for their redial service “CCBS”. Once you buy one of thses machines it is FREE.

BlackDog Says: March 4, 2010 at 6:54 pm

I had the original Demon Dialer. They were ABSOLUTELY GREAT for telemarketers and bill collectors! Back in the day (sorry, horrible phrase), I used it mostly to continuously dial radio stations to win prizes.

tommy Says: January 14, 2011 at 4:44 am

I was the king of radio contest in calif from 1980 to 1996, for years i dialed the phone by hand one after the other, when i was accused of using one of these by rick dees thats when i went out and bought 2. Well worth the money and the aggravation is taken away as the phones just do there thing and i sit back and watch woohooo…..

Reba Says: March 30, 2011 at 2:29 pm

I have had two Model 176 Demon Dialers since the 80’s and they have NEVER dialed 25 times a minute. It dialed differently depending whether you were redialing a “Not At Home” or a “Busy” number. It is every 10 minutes for up to ten hours for a “Not At Home” call, and for “Busy” numbers it is 10 times the first minute, then once every two minutes for ten minutes, and finally, every ten minutes for up to two hours. Pulse dialing was slower than the times given.

Dave Says: September 25, 2011 at 9:51 pm

Actually, demon dialers were not used for this purpose. I ran a DOS-based BBS for five years back in the day and I had to deal with (and even think like) a hacker, just to keep my board running, so I ran into a lot of different people. Demon dialers were software programs used to dial a sequence of telephone numbers in order to search for modems. Back then, if you found a modem it was usually attached to something to hack. The software would dial a number and listen for a modem connection. If it found a modem, the software would mark the number and move on. If someone answered the phone, a voice would be detected, the program would hang up and move to the next number. If you’ve ever seen the movie War Games, you’ve seen a demon dialer in action. I’m totally unaware of the software being used to repeatedly dial the same number but I guess it could be done if all you wanted to do was create a nuisance.

Gary Says: October 27, 2013 at 2:24 pm

I believe there were two different devices for the two different purposes, but the original “demon dialer” was for busy numbers or times when no one answered. A childhood friend of mine had one. My guess is you’re referring to DOS programs that were known as “demon dialers”, so named for the similarity to the original product in terms of rapid function.

Gregg Says: November 2, 2013 at 3:36 pm

Hello to all,
I’m looking for a device that will continue to call/redial a phone that is Busy, any info would be much appreciated. Thank You.

Dave Says: August 4, 2015 at 10:34 am

I still have my Demon Dialer (redial busy numbers) although I haven’t used it in years. I used it to buy concert tickets over the phone from Ticketron and later, Ticketmaster and LiveNation. Got some great seats! Sometimes it would crank at about 25 repeats per minute and sometimes, not. Depended on how long it took for the line to reset after a busy signal. More a function of the limitations of telephone switching technology than that of the Demon Dialer. It was an impressive device, in its time.

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