February 2021 - 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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Connecting to Remote Tandems
by voiceops＠ics-il.net July 9, 2021

July 9, 2021

I'm evaluating methods of extending our footprint. I purposely left out company names. One of the companies we talked to was really only interested in getting us the inbound long distance calls, not the local ones. Well, they would, but the terms were vastly different. Given that I still need to build out to connect to the local tandem, what's the point in using a third party to connect to long distance? Are the terms for connecting to the local tandems different because the access tandem is simpler, whereas the local tandem could potentially involve connections to a bunch of other switches, once volume dictated I needed direct connections... and they don't want to deal with that? Are there third parties that don't have vastly different terms for local tandem services? Also, is it likely that I just don't understand what's going on? I went circles with the sales rep to make sure I understood what he was saying, but I could be wrong. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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Programs to analyze CDRs
by marylou＠backuptelecom.com June 14, 2021

June 14, 2021

I have a client looking for recommendations on software programs to analyze their CDRs. They need one that will determine the percent of traffic by type: Local IntraLATA/IntraState, IntraLATA/Interstate, InterLATA/Interstate Any information on programs and what you like / dislike about them would be helpful! MARY LOU CAREY BackUP Telecom Consulting Office: 615-791-9969 Cell: 615-796-1111

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Wholesale MMS Group Messaging and Applications
by colton.conor＠gmail.com March 1, 2021

March 1, 2021

Which wholesale voip carriers successfully support Group Messaging? I know bandwidth.com does as they have a whole section about it on their webpage below. Does Intelliquient, Level3/ CenturyLink, Flowroute, Telnyx, Twilio, or other providers? Note, this is different than just regular SMS or MMS support. I think most all carriers support SMS, some support MMS, and few support group MMS. A better question is what softswitch, apps, or platforms support the MM4 or API of said wholesale carriers assuming they support Group messaging? For example, I think bandwidth supports the API/MM4 protocol, but they do not provide the end customer facing applications. They want you to hire a programmer to do this. Broadsoft and Metaswitch don't support MMS to my knowledge as they are built on XMPP for chatting protocols. They support SMS, but not MMS nor group MMS to my knowledge. Netsapiens does not either, I believe. 2600hz only does SMS. Who else out there has native MMS support? Group Messaging is characterized by an SMS conversation among 3 or more recipients at the same time. This is a many-to-many exchange of messages. Group messaging is typically sent as MMS messages. Bandwidth offers a ready-to-use API for Group Messaging besides the ability to send group messages over its MM4 platform. https://www.bandwidth.com/glossary/group-messaging/

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Huge increase of scam calls?
by caalvarez＠gmail.com Feb. 26, 2021

Feb. 26, 2021

Our customers are reporting a very large increase in spam/scam calls in the last week or so. Anyone else seeing the same? Any idea why? One number I tracked is getting nearly 50 per day. All fake caller ID of course.

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Charter/Spectrum Assist?
by david＠ringfree.com Feb. 26, 2021

Feb. 26, 2021

We have a DNS A record that intermittently stops resolving on Spectrum DNS. Clients won?t be able to reach it for a few days. And then it starts working again. Can someone at Spectrum reach out? I?d be happy to provide specifics. Thanks David -- -- David Wessell Ringfree Communications, Inc. [image: Ringfree Communications Logo] <http://www.ringfree.com/> Phone: (828) 575-0030 x101 Email: david at ringfree.com Website: ringfree.com 226 6th Ave E Hendersonville, NC 28792 [image: Twitter] <https://twitter.com/ringfreecom> [image: Facebook] <https://www.facebook.com/ringfree> [image: LinkedIn] <https://www.linkedin.com/company/ringfree-communications-llc> [image: LinkedIn] <https://www.instagram.com/ringfree/> -- -- David Wessell Ringfree Communications, Inc. [image: Ringfree Communications Logo] <http://www.ringfree.com/> Phone: (828) 575-0030 x101 Email: david at ringfree.com Website: ringfree.com 226 6th Ave E Hendersonville, NC 28792 [image: Twitter] <https://twitter.com/ringfreecom> [image: Facebook] <https://www.facebook.com/ringfree> [image: LinkedIn] <https://www.linkedin.com/company/ringfree-communications-llc> [image: LinkedIn] <https://www.instagram.com/ringfree/>

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iconectiv vs. Neustar
by voiceops＠ics-il.net Feb. 25, 2021

Feb. 25, 2021

I know that the database operations moved from Neustar to iconectiv a few years ago. What are the pros\cons to operationally using iconectiv vs. Neustar? My people are used to Neustar, but I can't help but feel behind if we don't move to iconectiv for everything we traditionally used Neustar for. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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Digium / Switchvox DMTF issue
by igoldstein＠telego.net Feb. 23, 2021

Feb. 23, 2021

i have a few Customers using Digium Servers we noticed on our installations when we upgraded their server to 7.2 and above the client starts reporting DTMF issues (DTMF is not recognized by the system) i have time troubleshooting this with Digium and with Adtran, they both point fingers at each other this issue only starts once upgrading the digium server to the new updates of 7.2 and above (even on the latest version 7.6.2) has anyone else experienced the same - what was the fix? I was told Asterisk updated the module that's responsible for DTMF ? and maybe that's where the issue is ? -- Izzy Goldstein Chief Technology Officer Main: (212) 477-1000 x 2085 <(212)%20477-1000> Direct: (929) 477-2085 Website: www.telego.com <http://www.telego.net/> <http://www.telego.com/> Confidentiality Notice: This e-mail may contain confidential and/or privileged information. If you are not the intended recipient or have received this e-mail in error please notify us immediately by email reply and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. Any views or opinions presented in this email are solely those of the author and do not necessarily represent those of TeleGo (T). Employees of TeleGo are expressly required not to make defamatory statements and not to infringe or authorize any infringement of copyright or any other legal right by email communications. Any such communication is contrary to TeleGo policy and outside the scope of the employment of the individual concerned. TeleGo will not accept any liability in respect of such communication, and the employee responsible will be personally liable for any damages or other liability arising. TeleGo Hosted PBX <https://youtu.be/DaT8YAZ4V0w>

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Commio
by abalashov＠evaristesys.com Feb. 18, 2021

Feb. 18, 2021

Does anyone have any information on the legitimacy of the CLEC concern "Commio"? I've got several spam calls today from numbers in their blocks, including 509-666 (Spokane rate centre) and 513-493 (Cincinnati). They all leave a ~4 sec voicemail consisting solely of a beep tone. Vaguely related: For at least a year now, 100% of the spam calls I receive on both my VoIP number and my mobile are from numbers in Onvoy number blocks. I can only assume that's because they bought everything in sight, including a lot of garbage traffic haulers. -- 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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Fake Voicemail Anti-Robocall Tactics
by calvin.ellison＠voxox.com Feb. 17, 2021

Feb. 17, 2021

Today we received a notice from one of our underlying carriers that included the following statement: * If a customer spoofs an ANI that they do not own, the clec's can forward > to call to a voiceless Voicemail which appears to be FAS. > Is there any legal device that actually supports this practice? I'm looking for a specific statute, FCC rule, precedent in a judicial ruling, or the like. The FCC has ruled that the SIP 608 response code is to be used for signaling when a call is rejected. I doubt the FCC or FTC has ruled that terminating carriers are permitted to cause loss of trust and revenue between upstream intermediate and originating carriers. Regards, *Calvin Ellison* Systems Architect calvin.ellison at voxox.com +1 (213) 285-0555 ----------------------------------------------- *voxox.com <http://www.voxox.com/> * 5825 Oberlin Drive, Suite 5 San Diego, CA 92121 [image: Voxox]

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