June 2019 - VoiceOps - lists.voiceops.org

ANIs flagged as telemarketer/spammer/scammer
by abalashov＠evaristesys.com Nov. 14, 2021

Nov. 14, 2021

Hi, So, of course, it is a known problem in the legitimate side of the lead engagement call centre, survey, etc. business that ANIs get flagged as "telemarketer" pretty quickly and start showing up that way on people's phones. Your normative viewpoint on that may vary depending on what you think of lead gen calls, but regardless, a reasonable person would differentiate between: (1) Legitimate outbound dialing operations that are following up with leads who provided their phone number and agreed to be called (at least, as a matter of clicking "accept" on _something_), or for some other legitimate mass-dialing purpose, and who actually own the DID inventory from which they present local-market ANIs and can in fact be reached on those numbers; (2) Illegal spammers who use fake ANIs and call people who did not in any way consent to being called by them. I am trying to learn a bit more about how this is done and what a legitimate, above-board business can do about it. Ignoring the factor of third-party call-screening apps (which most people with a mobile don't use), where is this generally implemented? As I understand it, T-Mobile do it on the network level. I have T-Mobile myself, and probably 2/3rds of unfamiliar numbers, including quite legitimate ones, show up as "Scam Likely" ? I know that's come up on the list before. AT&T displays "Telemarketer"; do they do it that way too, or do they use a Google Android feature for that which they enable as part of their carrier defaults for carrier-issued phones? What about other carriers and Android? As far as I know, Apple don't do anything like this. Do people with iPhones just not receive this "service"? How does that work? Asking where the central, or the most influential authority lies and who provides it goes to the heart of the real question, which is: what can a legitimate business do if their number has been blacklisted this way? As I understand it, the maintainers of these lists, along with the criteria for getting on them, are elusive and inscrutable, and there's really no recourse and no appeals process. I furthermore understand that this has led to the widespread approach of rotating ANIs, but that's a losing battle; they get flagged too. I imagine it won't be long before the criteria for "Scam Likely" are just "number appears to call lots of numbers in this rate centre and otherwise hasn't been around very long". But this is all just conjecture on my part; I really don't know much about how my carrier, anyone's carrier, or some BigCo that's behind my mobile OS decides that a call is a "telemarketer" or "scam" call. If anyone can shed some light on how this really works and what, if anything can be done about it, I would be most appreciative. -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

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CenturyLink and Neutral Tandem Contacts
by voiceops＠ics-il.net June 24, 2019

June 24, 2019

I was experiencing some problems with multiple inbound calls for each placed call and I put in a ticket with our tandem provider (Frontier). Frontier said they were seeing the multiple calls coming in from CenturyLink and Neutral Tandem. They gave me point codes and some other number I didn't recognize (TSC GNxxxxxx). Unfortunately, I only have mass-market customer facing support numbers (well, just for CenturyLink). Does anyone have a better contact at those companies? ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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Issues calling the Netherlands
by dovid＠telecurve.com June 24, 2019

June 24, 2019

Hi, We received a spoke in tickets for people trying to call the Netherlands. Sample numbers are working via Verizon Wireless in the US but failing with all major carriers such as: BT BICS N2P Voxbeam (tier2) I am also able to call via Verizon Europe. Anyone have any idea what maybe going on?

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ATA To Connect to Mitel PBX
by nate＠blastcomm.com June 19, 2019

June 19, 2019

I've only had to provide POTS termination to 1 MITEL system. I tried using Linksys/Cisco SPA and Grandstream ATA's, then finally put in an Adtran TA904 (2nd gen). The Adtran seemed to give the least number of issues with Lines getting stuck open, Echo, etc. But the (former) customer was still complaining about some issues when they closed up shop. I now need to provide 6 analog lines to hand off to an existing MITEL. Is there an ATA that's better than a TA908 for doing "Acceptable" POTS to a MITEL? Thanks, Nate

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Direct route to Mexico Mobile
by dovid＠telecurve.com June 19, 2019

June 19, 2019

Hi, Does anyone have a direct quality route for Mexico Mobile? We are currently using all of the "big" carriers (BICS, Verizon, BT) and have been having on and off issues mainly with grey routes (our callers hear "You do not have enough funds to complete this call" which usually means that the call is going through a GSM gateway). TIA. Regards, Dovid

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605-562 - Arbitrage scam?
by rdawson＠alliedtelecom.net June 18, 2019

June 18, 2019

Interesting that you haven?t really seen that much domestic . . . I?d say that domestic fraud accounts for at least 40% of the attempts we have seen over the last year or so, with another 40% to NANP ?island? destinations (DR in particular) and the remaining to international. Definitely different than a few years back when almost everything was to African destinations. The fraudsters are very smart and evolve over time, always have to be vigilant! From: Paul Timmins <ptimmins at clearrate.com> Date: Monday, June 17, 2019 at 6:48 PM To: Robert Dawson <rdawson at alliedtelecom.net>, Paul Timmins <paul at timmins.net>, "voiceops at voiceops.org" <voiceops at voiceops.org> Subject: RE: [VoiceOps] 605-562 - Arbitrage scam? I can just augment my existing one we developed in house easily enough. But the new behavior that's concerning is hacked endpoints calling the numbers. I'm used to "traffic pumping" being fr Report This Email<https://shared.outlook.inky.com/report?id=YWxsaWVkdGVsZWNvbS9yZGF3c29uQGFsb…> I can just augment my existing one we developed in house easily enough. But the new behavior that's concerning is hacked endpoints calling the numbers. I'm used to "traffic pumping" being free services people actually want leveraging arbitrage, but attracting fraudulent traffic from hacked handsets isn't something I've ever seen on domestic traffic before. Bold, since it implies there's revenue share, and federal law can reach a tribe in a way that the usual banana republic telco fraud in the 3rd world can't. -Paul ________________________________ From: VoiceOps [voiceops-bounces at voiceops.org] on behalf of Robert Dawson [rdawson at alliedtelecom.net] Sent: Monday, June 17, 2019 6:25 PM To: Paul Timmins; voiceops at voiceops.org Subject: Re: [VoiceOps] 605-562 - Arbitrage scam? Jumping in on this one late ? Pine Ridge is most well-known for the Ogala Lakota reservation that is located there. Numbers are in fact owned by Native American Telecom which is tribally owned and has had traffic pumping charges levelled against them as someone else mentioned. Payday lenders have used tribal law for years to get around usury laws, there was one company that was charging something like 900% effective interest. Repayment on a $10k loan was something like $75k. Wondering if they can somehow skirt Federal telecom law too? Paul, you are 100% correct ? any fraud detection system that is only looking at International destinations would not pick it up . . . you definitely need something that can, at a minimum, be configured to look at call velocity and volume to US destinations. I can make a recommendation if you are interested. Rob From: VoiceOps <voiceops-bounces at voiceops.org> on behalf of Paul Timmins <paul at timmins.net> Date: Wednesday, May 29, 2019 at 4:54 PM To: Matthew Yaklin <myaklin at firstlight.net>, "voiceops at voiceops.org" <voiceops at voiceops.org> Subject: Re: [VoiceOps] 605-562 - Arbitrage scam? Yeah, what makes it notable in this case is it seems like it's dead air calls and hacked phones like traditional international fraud, not free conference call services. On 5/29/19 4:16 PM, Matthew Yaklin wrote: Nevermind.. you meant interstate calling fraud detection systems I assume. Sorry. Please ignore me. I just reread again. Matthew Yaklin Network Engineer FirstLight 359 Corporate Drive ? Portsmouth, NH 03801 Mobile 603-845-5031 myaklin at firstlight.net<mailto:myaklin at firstlight.net> | www.firstlight.net<https://shared.outlook.inky.com/link?domain=www.firstlight.net&t=eyJ0eXAiOi…> This email may contain FirstLight confidential and/or privileged information. If you are not the intended recipient, you are directed not to read, disclose or otherwise use this transmission and to immediately delete same. Delivery of this message is not intended to waive any applicable privileges. ________________________________ From: VoiceOps <voiceops-bounces at voiceops.org><mailto:voiceops-bounces at voiceops.org> on behalf of Matthew Yaklin <myaklin at firstlight.net><mailto:myaklin at firstlight.net> Sent: Wednesday, May 29, 2019 4:14:02 PM To: Paul Timmins; voiceops at voiceops.org<mailto:voiceops at voiceops.org> Subject: Re: [VoiceOps] 605-562 - Arbitrage scam? Paul, Why do you mention international toll fraud when that is an area code and exchange for Pine Ridge South Dakota? And just imagining how small that company must be wouldn't a logical guess be more like they just messed up in some fashion? But in your defense that telecom company is fishy and Sprint tried to sue them. I am not sure what ended up happening. Typical crap with free conf stuff and having traffic sent to a high cost area... Matthew Yaklin Network Engineer FirstLight 359 Corporate Drive ? Portsmouth, NH 03801 Mobile 603-845-5031 myaklin at firstlight.net<mailto:myaklin at firstlight.net> | www.firstlight.net<https://shared.outlook.inky.com/link?domain=www.firstlight.net&t=eyJ0eXAiOi…> This email may contain FirstLight confidential and/or privileged information. If you are not the intended recipient, you are directed not to read, disclose or otherwise use this transmission and to immediately delete same. Delivery of this message is not intended to waive any applicable privileges. ________________________________ From: VoiceOps <voiceops-bounces at voiceops.org><mailto:voiceops-bounces at voiceops.org> on behalf of Paul Timmins <paul at timmins.net><mailto:paul at timmins.net> Sent: Wednesday, May 29, 2019 3:50:35 PM To: voiceops at voiceops.org<mailto:voiceops at voiceops.org> Subject: [VoiceOps] 605-562 - Arbitrage scam? Is anyone else seeing lots of long duration calls to the 605-562 exchange that when you dial the respective number, it supervises to dead air? Seems like a new kind of toll fraud that international fraud detection systems won't catch. -Paul _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org<mailto:VoiceOps at voiceops.org> https://puck.nether.net/mailman/listinfo/voiceops<https://shared.outlook.inky.com/link?domain=puck.nether.net&t=eyJ0eXAiOiJKV…>

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AT&T Hawaii Towers can't call 808-822-2464
by anakaoka＠trinet-hi.com June 18, 2019

June 18, 2019

This issue is going on for 5 days now. AT&T had the issue fixed for a while on Sunday until Monday 8am, then it started again. We have narrowed the issue to: AT&T Hawaii based cell phones can not call Verizon Enterprise SIP accounts. 808-822-2464 we know is hosted on Verizon IF you know anyone at AT&T that could help, please forward this. Thanks, Aryn AlohaTone Mobile: https://youtu.be/PdUyuf0hTYY Aryn H. K. Nakaoka anakaoka at trinet-hi.com Direct: 808.356.2901 Test our VM transcription 1. Call 808-792-CARS (2277) and leave a voicemail 2. Check https://twitter.com/808792cars for the transcription A Better Solution https://www.trinet-hi.com/abettersolution.pdf <https://www.trinet-hi.com/abettersolution.pdf> Aloha Tone PBX https://www.youtube.com/watch?v=96YWPY9wCeU CONFIDENTIALITY NOTICE: The information contained in this email and any attachments may be privileged, confidential and protected from disclosure. Any disclosure, distribution or copying of this email or any attachments by persons or entities other than the intended recipient is prohibited. If you have received this email in error, please notify the sender immediately by replying to the message and deleting this email and any attachments from your system. Thank you for your cooperation.

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605-562 - Arbitrage scam?
by paul＠timmins.net June 18, 2019

June 18, 2019

Is anyone else seeing lots of long duration calls to the 605-562 exchange that when you dial the respective number, it supervises to dead air? Seems like a new kind of toll fraud that international fraud detection systems won't catch. -Paul

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605-562 - Arbitrage scam?
by paul＠timmins.net June 18, 2019

June 18, 2019

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SHAKEN/STIR
by dovid＠telecurve.com June 17, 2019

June 17, 2019

Hi, Does anyone know if there are any email lists for SHAKEN/STIR. All I have seen so far is the RFC's and the IETF which is very bland. I am looking to see if there are any groups that are working on possible libs for SHAEKN/STIR as well as OSS to make things a bit easier. TIA. Regards, Dovid

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