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Post-Port Activation Delay
by voiceops＠ics-il.net Jan. 23, 2020

Jan. 23, 2020

I would like to preface this email by saying that I know that iconnectiv is managing ports now, but we just have the old Neustar portal working as the front end because I haven't had time to learn how all this stuff works so that I can properly train our employees on how to use the new portal. Undo business. Our people that manage the porting currently go into the neustar portal and activate a port. At that time, some carriers immediately start using bus. However, some carriers will still send traffic to the losing provider for some amount of time after that. Sometimes that is okay, sometimes it is not. I assume that there is not a darn thing that I can do about how quickly someone else decides to look up the number to see that it has been ported. However, can someone explain to me how common this is and what providers arnone for being sloppy? For example, last night we did a port at 9 pm. A test call that we did to a forwarding number that would have bounced through AT&T ILEC went through fine every time. Calls that would have gone through a variety of cell providers was extremely Hit or Miss, Even from the same operator. I apologize for any misused words. I was using voice to text and editing that on my phone can be difficult. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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Call Overflow Handling
by dmcduffie＠socket.net Jan. 10, 2020

Jan. 10, 2020

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NANPA Resource Management
by voiceops＠ics-il.net Jan. 9, 2020

Jan. 9, 2020

For those of you with NANPA resources, how are you managing them? There are a variety of reports one has to file and I'm not sure of a good way of keeping track of what's used, other than attempting to keep track of it in an Excel sheet... which seems error-prone. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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SBC E800
by kuylenj＠eastex.com Jan. 8, 2020

Jan. 8, 2020

We are getting jibberish back from the old SBC E800 whenever we do a dip on some 844 numbers. Anyone have a contact for SWB E800. All the numbers I'm finding from my predecessor are no longer in service. Thanks in advance! Important/Confidential: This communication and any files or documents attached to it are intended only for the use of the person(s) or entity to which it is addressed. It contains information that may be confidential and exempt from disclosure under applicable law. If you are not the intended recipient of this communication, you are hereby notified that the copying, disclosure, distribution, storage, retransmission or other use of this communication is strictly prohibited. If you have received this communication by mistake, please notify the sender immediately and destroy all forms of this communication (electronic or paper).

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LNP Waiver List
by voiceops＠ics-il.net Jan. 7, 2020

Jan. 7, 2020

A colleague of mine was asking some porting related questions and then presented this to me after I reminded them that at one point, some LECs had LNP waivers: https://numberportability.com/documents/1584/03162011_all_lnp_waiver_matrix… Anyone know of a more recent, similar document? It looks like the vanity DID they're looking for belongs to a LEC that at least at one point had a valid LNP waiver in place. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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STIR/SHAKEN Discussion: Will it help?
by beckman＠angryox.com Jan. 2, 2020

Jan. 2, 2020

A few months ago I attended an FCC STIR/SHAKEN discussion in Washington DC. They didn't get deep into the technical details but there were a bunch of big carrier representatives there. If you haven't followed STIR/SHAKEN, it's really just an additional SIP header that contains cryptographically-signed information about the origin point of the call. You can verify the signature with publically published public keys so you know whomever signed it is really them. Here's a few resources if you want to learn more: https://www.bandwidth.com/glossary/stir-shaken/ https://www.fcc.gov/call-authentication https://en.wikipedia.org/wiki/STIR/SHAKEN https://www.home.neustar/stir-shaken-resource-hub There are three levels to tell you how much you should trust the origin of the call: 1. Full -- The call came from the originating carrier's customer and is authorized to use the number 2. Partial -- The call came from the originating carrier's customer but may or may not be authorized to use the number 3. Gateway -- The carrier has authenticated from where it received the call, but cannot authenticate the call source (e.g., International Gateway call). As an example, as will be many legit cases, a Verizon Wireless mobile customer will place a call, which will route to Verizon, who will sign the call using STIR/SHAKEN with Full Attestation and we can all "trust" the call. But now we throw in VoIP. I'm a small customer, Initech, of a larger carrier, Hooli. I don't sign my calls, so I hand my calls to my larger carrier, Hooli. Hooli sees the call from me (their customer) with a valid CallerID I'm authorized to use and so Hooli signs the call with STIR/SHAKEN with Full Attestation. Turns out the call was a robocall. What changes? The only thing that changes is that the receiving party, say Soylent Corp, knows that Hooli originated the call. Soylent is not Hooli's customer, so how does Soylent complain to Hooli about the content of the call? And as carriers, we are not legally responsible for the content of our customer's calls. How will Soylent accept 90% of Hooli's Fully Attested valid traffic but avoid the 10% that is spam/robocalls that are ALSO Fully Attested? How exactly does STIR/SHAKEN help fix the robocall and spam call problem? Yes, I could block all of Hooli's calls where the attestation is Partial or Gateway, but you run the risk of false positives, especially in the International category, or just when Hooli isn't sure, like when I rent a DID from Acme but do termination through Hooli -- Hooli doesn't know that I am authorized to use that DID from Acme, even though I am, so Hooli has to mark my call as Partial or Gateway. I'm all for reducing annoying spam and robocalls, but I'm still not yet convinced that STIR/SHAKEN is going to materially reduce them. Let's discuss! Beckman --------------------------------------------------------------------------- Peter Beckman Internet Guy beckman at angryox.com http://www.angryox.com/ ---------------------------------------------------------------------------

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Odd Routing to Iowa
by voiceops＠ics-il.net Dec. 31, 2019

Dec. 31, 2019

Is anyone else seeing odd routing when calling Goldfield Telecom in Iowa? Yes, I'm almost positive no one here has had that need. Today when I call from Sprint, I get a guy that just keeps saying, "Hello". When I call with T-Mobile, I get through to the desired conference brdige. When I call with US Cellular, I get a lady's voicemail. I'm using the Google Fi service to call out from. I just tried via Pac-West\Impact Telecom and it wouldn't go through. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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Microsoft Voice exams
by ryan＠finnesey.com Dec. 22, 2019

Dec. 22, 2019

This may be a bit OT but I am looking for a few people that might have an interest in taking a few Microsoft Voice exams around Skye for Business. My firm would cover the cost of the exam and study guides. Exam 70-334: Core Solutions of Skype for Business 2015 Exam 70-333: Enterprise Voice Skype for Business 2015 Thanks Cheers Ryan

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Visible Wireless security contact
by ross＠tajvar.io Dec. 19, 2019

Dec. 19, 2019

I'm looking to get in touch with someone on the Visible Wireless security team. If you have a contact please shoot me their info. Thanks, Ross

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API for Intl CLI in spam lists
by dovid＠telecurve.com Dec. 17, 2019

Dec. 17, 2019

Hi, Does anyone know of an API that will give accurate results to see if a calling number is spam? The ones available on twillio seem to be geared to US phone numbers. When we try numbers that are set listed as spam in true caller they show clean on all the API's that twillio offers. Does anyone know of any other API's that offer something more accurate like TrueCaller? TIA. Dovid

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