Chinese (mandarin) scam calls

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I've Been Here Awhile
Posts: 2

Re: Chinese (mandarin) scam calls

In the US, I understand that carriers such as Verizon, T-mobile, etc... have technology to block scam calls and/or identify scam calls with "likely scam" id.  Does Rogers have such technology or plan on implementing it soon?

Resident Expert
Resident Expert
Posts: 2,624

Re: Chinese (mandarin) scam calls

The technology to identify scam calls with "likely scam" is not just on T-Mobile in the US, its here in Canada too,  its not a feature of an actual carrier, its more of a feature of Android.  My Android A8 has this feature built in but its available as a add-on from the google play store for other compatible models too.

 

But just a FYI, please please please be aware, the technology only works GREAT when the number is a known number of a scammer,, which means if scammers constantly change numbers and use numbers of unsuspecting victims which they have been doing as of lately, the technology cant work too well.   but it does detect legit telemarketers such as collection agencies, charities, outbound sales, etc.  from legit companies whos number is fixed.  but for scammers who constantly spoof their number with recycled numbers every other minute this technology wont be able to stop that.  but your not alone, Rogers has a new technology coming out next month which should reduce some of those scam calls



I've Been Here Awhile
Posts: 4

Re: Chinese (mandarin) scam calls

Thanks Corey, but telling us your tale of woe and saying your solution was to give up isn't a great answer.

 

We've heard many times that Rogers "is working on it" and that you "take these things seriously".

 

Let me make you an offer: I'm a software developer. I'll give Rogers as much of my time as is needed to help implement a fix. I'll start with a simple algorithm your guys can play around with.

 

Assumption: Rogers has 10.8M Canadian customers. I'm guessing over 20% (easy) get a call a day. Assume the spammers are using a pool of 1000 numbers. That's over 2MM calls over 1000 numbers = 2,000 calls from each number. 

 

   Create a lookup map/dictionary, keyed by caller ID, that stores { DateFirstSeen [datetime), Occurences (number) }

   For each phone call that lasts less than 5 seconds:
     If we have an entry for that caller ID
         if DateFirstSeen > 1 day ago

             set DateFirstSeen = Now, Occurences  = 1  // reset the counter for this caller ID
         else
             set Occurences = Occurences + 1
             if Occurences > 1000

                  SendCallerToTheDepthsOfHades(callerID)
     else
          create a new entry, setting DateFirstSeen = Now, Occurences  = 1
   End For

 

Basically: count the number of times each caller ID is hung up after 5 seconds. Any number that's been hung up 1000 times is probably a scammer. Given each number probably hits 2000 people a day it means that this will solve the problem for half the Rogers customer base. Toggle it down to 500 hangups from a single number and it solves the issue for 75% of Rogers customers.

 

Next time one of the tech guys says "it's too hard" send them this.

 

Next time a corporate type says "it's too expensive" then I'd argue that if every Rogers subscriber makes 3 calls a day that's 33M records to store, or 381/s.  A cellphone has enough power and storage to handle this load, and something like Redis, which is free, can store this info at this speed without even getting out of bed in the morning.

 

Don't complain to us, Corey. Be an advocate for us and push the message higher up the chain that more needs to be done. The first company that gets this done gets the bragging rights, the media coverage AND the mass defections from other carriers for which this is just too hard.

 

Resident Expert
Resident Expert
Posts: 6,439

Re: Chinese (mandarin) scam calls

@blah2016 you're forgetting the fact that every carrier in the chain gets paid, one way or the other.  So, is it in their economic interests to block spam calls?  I doubt it, hence the slow to non-existent progress on blocking spam calls. 



I've Been Here Awhile
Posts: 4

Re: Chinese (mandarin) scam calls

Possibly, but with my marketing hat on it's a precarious position to rely on. As soon as one carrier implements even *something* it'll be media grabbing and that's what will then be expected of the rest. I honestly don't think the economics of robocall revenue is long term viable