May 2020 - 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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ringcentral port out issues
by jd＠boldnetworks.net June 12, 2020

June 12, 2020

Hi, Anybody have a contact at RingCentral? Getting some sort of rejection porting out, sales and everyone else says they don't see the port, Inteliquent side shows something different with rejection. Thank you

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Carrier Robocall Blocking
by calvin.ellison＠voxox.com May 26, 2020

May 26, 2020

What solutions are people using to stop robocalls at the carrier level? We're dealing with aggregator and international gateway traffic that sometimes needs aggressive filtering. Regards, *Calvin Ellison* Senior Voice Operations Engineer calvin.ellison at voxox.com

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Canadian Mobile/Landline TN lookup
by ivan.kovacevic＠startelecom.ca May 21, 2020

May 21, 2020

Anyone have an idea on where/how to find accurate near-real time TN lookups for Canada to determine whether a number is mobile or landline? As a blunt tool, we have used NPA-NXX/X ranges but this doesn't cover ported numbers, which is what we are after for a client. Thanks in advance! Ivan -- NOTE: This email message and any attachments are for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by replying to this email, and destroy all copies of the original message.

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Inteliquent contact
by nathana＠fsr.com May 18, 2020

May 18, 2020

Is there anybody from Inteliquent subscribed to this list who wouldn't mind reaching out to me off-list? Specifically looking for someone knowledgeable about port-ins, IQ's voice network, and its coverage, and the subject is of a time-sensitive nature. I have tried reaching out to a couple of contacts I've been pointed to by others outside of their org, but have received zero responses. Thanks much, -- Nathan Anderson First Step Internet, LLC nathana at fsr.com

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Three Digit Numbers
by voiceops＠ics-il.net May 15, 2020

May 15, 2020

What three digit numbers are commonly in use and how are people routing them? Obviously there's 911 and that has a whole routing ecosystem. What about 811? 311? X11? What other special numbers are people handling? ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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Fwd: 911 and Softphones
by voiceops＠ics-il.net May 15, 2020

May 15, 2020

The pitfalls of having my email address mirror the mailing lists I'm on, I get list submissions. :-) ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com ----- Original Message ----- From: "Christopher Aloi" <ctaloi at gmail.com> To: voiceops at ics-il.net Sent: Thursday, May 14, 2020 9:39:41 AM Subject: 911 and Softphones Hey All, With the recent migration to everyone working from home we are seeing a huge increase in soft phone usage. How is everyone handling location updates for 911 with soft phones? Our switch has the concept of sites and users fall within a site but can also travel across sites. An out pulsed number is bound to the site when 911 is dialed from within the site. We are looking at building individual sites for each user so they can have a dedicated unique outbound number only for 911. Does your company consider a soft phone the same as a "hard" phone with regards to 911? From the reading I have done I see no delineation between the two. Thanks, Chris

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Toll Free Caller ID
by calvin.ellison＠voxox.com May 14, 2020

May 14, 2020

It looks like Somos is pushing TFN CNAM, press release below from Mar 30, 2020. I've always understood TF ANI to be invalid. What's the news on using TFN as a caller ID? Does this require a local charge number in P-Charge-Info or P_Asserted_Identity or elsewhere? Has the FCC or anyone else approved TFN as ANI? Is TF ANI supported for STIR/SHAKEN? https://www.prnewswire.com/news-releases/toll-free-caller-id-information-he… Regards, *Calvin Ellison* Senior Voice Operations Engineer calvin.ellison at voxox.com

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Analog Phone Lines - Timesouce for PBX System
by colton.conor＠gmail.com May 14, 2020

May 14, 2020

We had a customer that had Frontier Analog phone lines going into their Panasonic TDA-50 PBX system. We recently ported the numbers from Frontier to our Broadsoft, and deployed a Poly OBI508 ATA onsite. We also replaced their router and internet connection. Customer is complaining that their phones are displaying the wrong time. We explained to them that we did not mess with their phone system PBX only the input lines. My question is, do oldschool, onsite PBX systems, like a Panasonic TDA-50, use the analog FXS input lines from the provider (us) as a timing source? If so, what protocol is this, and where would be change it on the adapter? I would think most PBX systems are like computers, and would use NTP as the timing source.

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