"Answer but don't Talk"
This is the simplest solution, guaranteed to work!
This is a mathematical solution which is 100% effective.
Mathematical Proof
Robocall companies have two major components to their system
Telecommunication hardware which make millions of calls per hr, call this number R.
Actual people (employees) who talk to potential customers, call this number H.
The robocall company assume a certain percentage of calls will be answered by a potential customer, say .1% of the calls, or .001xR. Call this percentage P. If R is 1,000,000 calls/hr, the answered calls will be PxR or 1000 calls/hr. Say the number of people handling the calls, H, can handle 10 calls/hr each. So you would need 100 people to actually talk to customers.
So the number of employees needed to talk to customers is,
H = PxR/10 = .001x1,000,000/10 = 100 people
The thing that we can control is P. If we increase P to 1%, then
H = PxR/10 = .01x1,000,000/10 = 1000 people needed to answer the calls, but they only have 100
or if P is 10%
H = PxR/10 = .1x1,000,000/10 = 10,000 people needed to answer the calls, but they only have 100
The 100 people will find that they have thousands of calls to answer...they are completely overloaded!
We have the solution, it's is simple and totally effective.
When you get a robocall you don't want, press the appropriate button to say you are interested in their product, then just say nothing but don't hang up, just put the phone down for 5 minutes. Soon the illegal companies will find their lines overloaded with thousands of silent lines, no one's talking! Employee's will switch from line to line, wasting their time trying to get a response. The illegal companies have no solution, the only action the robocallers can take is to take your number off the call list after the employee answers and finds no one there. This effectively implements their own do-not-call list!
The solution to the robocall problem is to educate the consumer in a "Answer but don't Talk" campaign to answer the call but put the phone down for 4 or 5 minutes. This can be done through TV ads and the FTC "Do Not Call" internet page. Simple but totally effective!
Does it work?
"How successful is the proposed solution likely to be in blocking illegal robocalls? Will it block wanted calls? An ideal solution blocks all illegal robocalls and no calls that are legally permitted. (For example, automated calls by political parties, charities, and health care providers, as well as reverse 911 calls, are not illegal robocalls.)"
- This solution will eventually eliminate all annoying and unwanted robocalls, all legal automatic calls can be answered as normal.
"How many consumer phones can be protected? What types of phones? Mobile phones? Traditional wired lines? VoIP land lines? Proposals that will work for all phones will be more heavily weighted."
- The solution works with all phones.
"What evidence do you already have to support your idea? Running code? Experiments? Peer-reviewed publications?"
- The solution is proven mathematically. It's guaranteed to work.
"How easy might it be for robocallers to adapt and counter your scheme? How flexible is your scheme to adapt to new calling techniques? How have you validated these points? Remember that the real test of a security system is not whether or not you can break it; it’s whether or not other people can."
- The solution cannot be defeated, it's a mathematical proof. Robocallers will give up trying after their profits dwindle from silent lines.
Is it easy to use?
"How difficult would it be for a consumer to learn to use your solution?"
- Very easy.
"How efficient would it be to use your solution, from a consumer’s perspective?"
- Totally efficient.
"Are there mistakes consumers might make in using your solution, and how severe would they be?"
- No mistakes can be made (the consumer is silent).
"How satisfying would it be to use your solution?"
- Very satisfying...the consumer is defeating their system!
"Would your solution be accessible to people with disabilities?"
- Yes.
Can it be rolled out?
"What has to be changed for your idea to work? Can it function in today’s marketplace? (E.g., Does it require changes to all phone switches world-wide, and require active cooperation by all of the world’s phone companies and VoIP gateways, or can it work with limited adoption?) Solutions that are deployable at once will be more heavily weighted, as will solutions that give immediate benefits with even small-scale deployment."
- Nothing has to be changed, the solution works with all systems.
"Is deployment economically realistic?"
- Yes, it involves educating the consumer through an "Answer but don't Talk" campaign to increase "P", the percentage of answered calls.
"How rapidly can your idea be put into production?"
- Immediately.

18 comments
David Ma • about 13 years ago
The math is wrong. It takes less than 5 seconds before the employee realizes there is no one in the other line and hang up. Also, the bad guys have the technology to disconnect the line if there is no live person on the line and that takes just a couple of seconds.
Bob Bell • about 13 years ago
Not so. At P=10%, the bad guys will get 100 invalid responses for every valid response, at P=20% they will get 200 invalid responses for every valid response. The valid calls will hang up since no one answers. The system will be overloaded.
If the bad guys can detect a person on the line, this can be easily defeated by saying "Hello", then putting the phone down. You can change the campaign name to "Say Hello but Don't Talk".
David Ma • about 13 years ago
The math has been worked on for years by economists. In your case I was referring to H. Adjust H using 3 seconds of average call duration and see how the numbers change. Also keep in mind that in order to waste 3 seconds of their time, each American must waste close to 30 seconds of his/her time. Adjust for the income disparity, the trade-off is close to 300:1 in their favor... Once you start modeling the economics and game theory involved you realize why the illegal robocall business models are exploding at the macro level. Does your solution work? Yes, it does but the solution will cost the society far more than the problem (you cannot stop because once you stop the robocall will return). This is why FTC is asking for a technical solution.
Bob Bell • about 13 years ago
I'm sure the average American would give 30 sec of their time for each robocall to eliminate them, you even get some satisfaction by doing it, you're defeating the bad guys! If you did a survey you would see that this is true, ask your friends to see what they think, try it yourself!
If everyone did this, the bad guys will eventually give up and the robocall problem would go away.
David Ma • about 13 years ago
The economic and behavioral theories behind telephone fraud and telemarketing are quite fascinating and have already been quantitatively explained by mathematical economists. In fact, the answer to why your proposal is not feasible is a text book study in the field of behavioral science. I think you will find their works very interesting read.
Bob Bell • about 13 years ago
You keep referring to "economic and behavioral theories". You still haven't given any concrete reasons why my proposal won't work. Interpret the theories in plain language please.
You said "Does your solution work? Yes, it does but the solution will cost the society far more than the problem." I don't believe 30 sec per robocall is a great burden on one individual, I think people would gladly do this. Are there any other concrete reasons put forth by your theories that explain why my proposal won't work?
On the FTC consumer information page, 'http://www.consumer.ftc.gov/articles/0259-robocalls', the advice to consumers is,
"If you get a robocall:
Hang up the phone. Don't press 1 to speak to a live operator and don't press any other number to get your number off the list. If you respond by pressing any number, it will probably just lead to more robocalls."
This is exactly the wrong thing to do, and is not doing anything to stop robocalls. The advice should be,
"If you get a robocall:
Don't hang up the phone. Press 1 to speak to a live operator but don't say anything. Put the phone down for about 2 minutes, then hang up. This will help overload the robocaller's telephone lines."
If everyone used this method, robocallers would soon be out of business.
David Ma • about 13 years ago
Bob, if the maths I gave are not apparent enough please search for more indepth readings in library or better yet take courses in these subjects. I understand you want to help but the idea in your proposal has been around a long time and there is no deceit in my replies nor conspiracy in why it has not been adopted.
David Ma • about 13 years ago
Just so you know I am not with the FTC or some academic snub. Before it was called the robocall epidemic, out of curiosity and mostly out of annoyance I thought I have the problem of illegal telemarketing solved same as you. However, during my research to confirm my 'original idea' I learned that others already have worked on the same problem and from studying their works I learned the proper mathematical layout.
I approached the Robocall Challenge the same way. A lot of very smart people have already worked on the problem and what I got out of the learning process so far already justified the time I put in developing my own solution.
Bob Bell • about 13 years ago
I still haven't heard a clear explanation from you why my solution won't work, nor have you offered any references or links to articles that would disprove my approach.
My solution may be counter-intuitive, that you should ‘Press 1’ on the robocall instead of just hanging up, but the math supports this. Often the simplest solutions are the best.
Jeff Johnson • about 13 years ago
Made a comment on another similar post. Yes. I think this is the best answer. Have everyone hit the button and then ignore the phone. It removes the advantage of a robocall. If all robocalls convert to live operator you just bought a robocaller for nothing. If majority of lines are just dead air they will need more operators to convert a sale/scam. This is the true crowdsource solution.
Adam C • about 13 years ago
I already do this, yet I still get the calls. Explain how that is working. It only works on a per scam company basis. New scam companies are started everyday and will continue to call and bother me.
Bob Bell • about 13 years ago
Yes it works for me also on a per scam company basis. But to eliminate all scam companies, more people have to be involved.
You did the right thing. The trick is to get everyone to do this, so spread the word. If everyone who got a robocall 'Pressed 1' and put down the phone instead of hanging up, the scam companies would soon be swamped with calls to be answered but no one would be there to talk to. The FTC needs to start a "Answer but Don't Talk" campaign to promote this.
Lee Copp • about 13 years ago
A shortcoming of this solution is that the end consumer is still bothered with the illegal calls rather than being protected from it. Not only are they still subject to harassing phone calls, they must put forth extra time & effort in the hopes that it will do some good.
Bob Bell • about 13 years ago
Like Jeff J said, this is crowdsource solution, where many people work together to solve a problem. I have done this technique and noticed my robocalls have dropped down to nothing. I suspect that the bad guys take you off their call list if you 'Press 1' but don't talk. They don't want to waste time with people that don't respond.
To eliminate robocallers, you need to get everyone involved and beat them at their own game. If they get tens of thousands of people 'Pressing 1', their lines would soon be swamped with calls to be answered but no one on the line.
Michael Knight • about 13 years ago
My company has been testing exactly this solution with a honeypot line that has been groomed over the past eight years to receive illegal calls. The line is unlisted and DNC registered yet currently receives at least two calls each week from "Rachel" or similar operations (a year ago it was bogus surveys, lately more calls are from India for bogus computer repair). The line has no voicemail or answering machine and is answered live about 90% of the time. To save time, we always press "1" as soon as we know which pitch is calling. Know that after pressing "1" the next thing you will always hear is something like, "Are you seeking to lower your interest rate"? You will never hear, "Hi", "Hello", or "How are you today"? When a live person comes on we play different games to probe the systems. As soon as the screener realizes you are not a legitimate prospect they hang up immediately without discussion. Nothing fazes them – except wasting their time. This was proven a few weeks ago when we gave a string of phony information that extended the live call to approximately two minutes. One could hear the screener commenting in an irritated tone to a colleague in the background, "That's not his real name; this guy is wasting my time".
Robo-calling works because it utilizes costly human effort extremely efficiently. Take away this hyper-efficiency and operating costs quickly become so unreasonable the system collapses. That's about as much economic theory as we need to apply to this.
In the scenario described, we assume 999 people out of a thousand will hang up as soon as they get a whiff of B.S. For this solution to work, our calculations suggest we would only need about 10 to 20 percent of the people who normally hang up immediately to press "1" and play games with the screeners. As more people press "1" the amount of time physically required to crash the system would be reduced to mere seconds.
Given the copious amount of time people expend today on electronic communication, the extra time we ask people spend on this solution hardly seems an issue - particularly if it will solve the long-term problem (consider how many people are willing to recycle). While we do not dispute the work of the economists, let us remember behavioral economics is really about human behavior, and in this scenario one cannot discount the satisfaction many people would likely find in the opportunity to stick it to the bad guys. Who doesn’t know two people out of ten who would enjoy fighting back?
This simple crowd-sourced solution would absolutely work. Unfortunately, it will be rendered moot as soon as the bad guys apply an even more elegant fix. The answer lies in the fourth sentence above. All they need do is disallow bypassing the pitch message and lengthen it. Alternately, pressing “1” could send callers initially to another pitch machine or automated attendant. If it takes the Time-Wasters two minutes to get to a point where "1" becomes functional or a live person is reached, few will have the time or bother – bad guys win.
Love the solution, but afraid it won't be enough.
Michael Knight
BetterWorldCreations.com
Jeff Johnson • about 13 years ago
If they start sending people to secondary pitch machine, or lengthening the time before you can press one, etc wouldn't that also drop their conversion of calls to sales. Obviously the 1st rule of croudsourcing the solution is NEVER buy anything from these slimes. Anything to increase their cost per sale is a good thing.
Bob Bell • about 13 years ago
Yes, if the bad guys used a secondary pitch machine, or lengthened the time before you can 'press 1', they would lose valid customers, especially with a 2 minute message. Personally, I would just put the call on speaker phone and press 1 again when asked, no matter how long the time.
If the bad guys did go to this lengthened message, or use any other modified technique, it would be great! It would show that the solution was working and give the crowdsource people more encouragement! Once the people get the idea that the solution is to waste the bad guy's time, they'll figure out a way to do this. It's a classic war of measures and countermeasures. Once they become involved, people will adapt their techniques to defeat the bad guys...when the crowd gets the smell of victory, they are not going to quit!
rohsik hs • almost 13 years ago
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