September 2020 - VoiceOps - lists.voiceops.org

TNS Outage?
by rkohutek＠gmail.com Sept. 9, 2020

Sept. 9, 2020

We have redundant A-Links to TNS and both are hard down. Ticket is open, but no ETR. Anybody have an idea what's happening?

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Question about SS7 routing
by ross＠tajvar.io Sept. 8, 2020

Sept. 8, 2020

Hi all, I'm trying to understand how routing works in SS7-land. I am familiar with portability, and I know (at least in the US) the first step in routing a call is doing an LNP dip to get the LRN. However, it looks like addresses in MTP3 are "point codes" (PCs) which are assigned to switches. Calls are set up with ISDN-UP, which is transported via MTP3. So in order for a call to be set up, the destination switch's PC must be known. How is the destination PC determined from the destination LRN? Thanks, Ross

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Google Fi
by shripald＠gmail.com Sept. 8, 2020

Sept. 8, 2020

Hi All, Is there anyone from Google Fi on this list? we have a slammed number situation and they only have email support to their porting/orders department. thanks, Shri

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Mobile HD Voice interop status?
by hartnett.tom＠gmail.com Sept. 3, 2020

Sept. 3, 2020

Does anyone have any updates or experiences in bridging AT&T or VZW HD Voice calls over to any non-mobile (VoIP) service and keeping the call wideband? It's discussed from time-to-time (with no real success reported) but it's been a while.

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Outsourcing STIR/SHAKEN Setup
by marylou＠backuptelecom.com Sept. 2, 2020

Sept. 2, 2020

I'm a Carrier Consultant who's been helping CLEC, IXC, Paging, Wireless and VOIP carriers install and maintain their PSTN networks for the the last 20 years. I can help clients get their FCC Certification to become a STIR/SHAKEN carrier as well as Numbering Resources, NPAC / LSR training, etc (if you need those pieces). Once my clients get their certification, I refer them to TransNexus. Jim and his team can help you with the process of turning your STIR/SHAKEN services up. MARY LOU CAREY BackUP Telecom Consulting Office: 615-791-9969 Cell: 615-796-1111 On 2020-08-31 05:37 AM, Dovid Bender wrote: > Hi, > > Does anyone have a recommendation for a company that get us everything > needed for STIR/SHAKEN setup? By setup I mean helping us file to get a > cert etc. From the small research I have done there is a lot of > fragmented information out there and it would be easier for us to pay > someone else to do this then invest our own time to take care of this. > > TIA. > > Regards, > > Dovid > _______________________________________________ > VoiceOps mailing list > VoiceOps at voiceops.org > https://puck.nether.net/mailman/listinfo/voiceops

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Looking for SIP/PRI provider
by ctaloi＠gmail.com Sept. 2, 2020

Sept. 2, 2020

We have a customer who needs a PRI to SIP gateway to handle some legacy applications and a service provider to handle their calls (1T!1, ~25k/month). It is not a market we deal with but I am looking to refer the customer to a provider who does. Any recommendations? I would just direct the customer to the provider, not looking to stay in the middle of this. Thanks, Chris

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3CX Trunk Unregistering
by peeip989＠gmail.com Sept. 2, 2020

Sept. 2, 2020

Hi all. I have a customer running 3CX who sometimes has calling problems because the trunk becomes unregistered from our Broadworks platform. When you look at the REGISTERs, there are a couple peculiarities: 1. 3CX sends an un-REGISTER (expires=0) right before it re-REGISTERs rather than just re-registering the session 2. 3CX sometimes, but not always, starts a new session (new Call-ID) for the "new" REGISTER rather than simply refreshing the existing session 3. Not a problem, but something I find odd and worth mentioning is that it sends the User-Agent info when it un-registers but *not *when it registers The problem comes in when we get the un-REGISTER but it is not followed by a new REGISTER and calls begin to fail. The customer is obviously frustrated and is expecting *me *to do something about it, but.... Anyone familiar with 3CX and can give advice? Any idea why it behaves this way? They're running v16.0.5.619 (based on #3 above). Thanks in advance. -Pete

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