August 2021 - VoiceOps - lists.voiceops.org

Verizon Wireless Contact
by cwhelan＠staff.gwi.net Jan. 21, 2022

Jan. 21, 2022

Hello everyone, I know this is a long shot, but I'm hoping someone on here works for Verizon Wireless or knows someone that is in a position to assist us. Recently, a change to call routing occurred and Verizon Wireless calls are now being delivered across our tandem instead of a SIP peer. Ideally, I would like to establish a SIP trunk to Verizon Wireless but changing the call flow is the short term goal. Thanks in advance for your help! Christopher Whelan Director of Network Engineering GWI office 207-602-1115 *cell* 207-751-5013 www.gwi.net

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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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Wholesale Platforms - 2021 Edition
by calvin.ellison＠voxox.com Aug. 27, 2021

Aug. 27, 2021

This question comes up every few years, let's get an update for the cloud era! Looking for a wholesale voice & SMS routing, billing, and analytics platform that can meet these requirements: - Cloud or Hosted solution for everything but the call path - Scale is billions of call attempts per month, dozens of vendors with full NPA-NXX or A-Z detailed breakouts - Intelligent, performance-based rate generation, "better than LCR" - Realtime intelligence in call routing (performance-based routing) - Support for DID/Toll-Free inventory with forwarding/failover routing - Proper rating and costing for inbound, outbound, on-net, toll-free, reciprocal comp, dips, commissions - Call routing engines go next to our SBCs to minimize latency - Call routing engines can operate disconnected from the main database - Call routing engines scale is up to 10,000 calls/messages per second - Management APIs for administrators and clients - Client portal to manage trunks/binds, make payments, download CDRs, view reporting/analytics - Admin portal for provisioning, analytics, billing - Agent portal for monitoring clients, commissions, payouts - SMS must support SMPP and REST API for messaging - MMS protocols supported - No database license that costs more than the actual product - Easy to use analytics - better than we can do with Elasticsearch/Kibana Bonus: - Support for Sansay VSXi external routing queries - Support for Sansay VSXi provisioning - STIR/SHAKEN features including enterprise extensions like Delegated Certificates, DLT, Central TN, Registered Caller, etc. - Ready for Rich Call Data/Branded Call Display Calvin Ellison Systems Architect calvin.ellison at voxox.com <http://voxox.com> <https://www.facebook.com/VOXOX/> <https://www.instagram.com/voxoxofficial/> <https://www.linkedin.com/company/3573541/admin/> <https://twitter.com/Voxox> The information contained herein is confidential and privileged information or work product intended only for the individual or entity to whom it is addressed. Any unauthorized use, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify me immediately.

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STIR/SHAKEN concerns
by marylou＠backuptelecom.com Aug. 21, 2021

Aug. 21, 2021

I am doing some research for an article so I wanted to ask all of you some questions about STIR/SHAKEN and the upcoming implementation in late September when traffic will start getting blocked. I personally envision the first few months will be a nightmare! Ironically this will all hit just as elections are about to take place......how convenient! When the industry missed so many steps on the implementation phase, there's sure to be things they've missed in this phase so let's think ahead so we can address as many problems as we can before they happen! I specifically want to focus on the effect the changes are having and will have on end user customers. Not only residential and small business customers, but enterprise customers such as schools, hospitals, banks, political organizations, and other industries that use call centers. Please respond to the questions below and let me know your thoughts. 1. Have you seen any changes in the industry since the June 30th implementation date. I have witnessed a few odd routing issues that have never happened in the past. I'm not sure if they are a fluke or a trend. Have you experienced anything out of the ordinary? 2. If your network is partially TDM and partially VOIP, have you experienced any issues with either of them? What are your future concerns since STIR/SHAKEN does not work with TDM? 3. My biggest complaint as a residential consumer is that caller ID no longer shows up like it did. Unless I have the number in my phone, I only see something along the lines of Scam Likely or a phone number with no caller ID. I find this quite irritating since it prevents me from determining if its a friend whose carrier hasn't implemented it yet or an actual scammer. Anyone else have complaints about what information is being passed? 4. Are you getting more complaints from your customers about anything related to STIR/SHAKEN? What are the nature of the complaints? Is there a recurring theme? 5. What is your customer's impression of what a Robocall is? My son claims he's getting more SCAM calls than he was before but I'm not sure he understands what a Robocall is. He may consider any advertisement or donation request a robocall, but some things are allowed while others aren't. What are you doing to help your customers understand what's allowed and what's not allowed? 6. If you're hearing from customers about scam calls they are getting, are you reporting those calls to anyone? If so, who are you reporting them to? 6. Criminals always seem to be creative. Have you seen any new methods scammers are using to get around STIR/SHAKEN process? 7. One of my greatest concerns I have about the September implementation is that carriers will get no warning if/when they are going to be blocked. I haven't seen anything that states a terminating carrier or intermediate carrier has to give a warning muchless disclose that they will start blocking another carrier's traffic. Maybe there is a hotline to call if your traffic is being blocked unjustly, but I haven't heard of any. Have you? Normal routing issues are already a nightmare to deal with. Hopefully this will not make it worse or just another method for anti-competitive carriers to take out their competition! 8. The last question leads me to the next one. I know there are some carriers using their underlying carrier's certificate so they didn't register for the Robocall Mitigation Database. I didn't recommend this, but I heard through the grapevine some consultants / underlying carriers did. If those who didn't sign up for the Robocall Mitigation Database have legitimate traffic shut down, what will happen to all their legitimate customers? Will they be out of service until the ITG gets around to figuring it out? Has anyone heard of a plan to address the impact on consumers displaced by this? 9. Has anyone heard of a centralized contact to deal with unjust blocking complaints? We all know nothing goes perfectly but I would think it will be important for everyone to know what number to call should they have problems BEFORE this change is implemented. Have any of you heard anything? I haven't! 10. I tried to keep my list simple but I would love to hear your thoughts on anything I missed. Thanks for all your input, MARY LOU CAREY BackUP Telecom Consulting Office: 615-791-9969 Cell: 615-796-1111

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Strange Inbound Verizon Issues
by mwiles＠akabis.com Aug. 17, 2021

Aug. 17, 2021

We are seeing an issue involving Verizon... wanted to see if anyone had thoughts... or if Verizon's monitoring here... The problem seems to be happening only in FL, but I could be wrong about that. A Verizon customer calls a TN we have via Inteliquent. They get the following intercept message: "Welcome to Verizon wireless. Your call cannot be completed." Here's where it gets interesting... we have a technician standing next to the customer with the Verizon cell that's failing. The technician calls, using his Verizon phone, and it always completes. The customer, standing less than six feet away always fails... again, both calling the same terminating number. We can only come up with one difference... when we get the failures, the Verizon phones being used are all personal accounts... and the ones that complete are on Verizon business accounts. I'm not saying that's the cause of the issue; but, it's the only common denominator we can find. We tried to open a ticket with Verizon, as the calling party (personal phone), and Verizon wouldn't open a ticket. (what the heck???) Has anyone seen or heard of such a thing? Thank you, Mark

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Anyone from AT&T (BellSouth) able to look at some number reachability issues?
by hf0002+nanog＠uah.edu Aug. 12, 2021

Aug. 12, 2021

If anyone from AT&T (especially the old BellSouth area) is here, maybe you can save our wretched souls. It appears AT&T customers suddenly can't call any of our numbers as of this afternoon, instead receiving announcement "Your call cannot be completed at this time." Seems to apply to AT&T Wireless customers, as well as AT&T fixed service (VoIP/PRI) customers. I suspect this is due to the fact that our numbers were previously with AT&T (delivered on a handful of PRIs) but were ported out to Comcast about 2 years ago. So obviously I cannot open a ticket with AT&T, not being an AT&T customer. Comcast has already concluded there is not much they can directly do about this. The affected numbers are 256-824-1000 through 256-824-7999 (total of 7,000 numbers). Any and all assistance would be greatly appreciated! -- Hunter Fuller (they) Router Jockey VBH M-1A +1 256 824 5331 Office of Information Technology The University of Alabama in Huntsville Network Engineering

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ANI Network trouble
by compuwizz＠gmail.com Aug. 11, 2021

Aug. 11, 2021

ANI Network seems to be having a bad day. Some calls complete quickly, others have a long PDD before a 503 reject. Called the NOC to open a ticket and the person said they are having lots of issues ongoing.

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