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Software SBC solution recommendations
by ryandelgrosso＠gmail.com July 4, 2015

July 4, 2015

So I'm working on a bit of a niche project in need of a virtualizable software SBC and while I am aware of many of the open source solutions out there I'm sure there are facets of the various options that those who live with them every day can share that will influence direction. I need this soluton to do: registration caching (but pass reg back to softswitch), nat traversal/media proxy, basic topology hiding, blacklisting, some kind of dynamic routing (ENUM is preferred). No need for fancy multi realm setup, simple inside/outside is fine. I am presently looking at: * Kamailio + some kind of media proxy (does much of the signaling but is not a B2BUA) * Freeswitch (doesnt seem to do the reg cache / pass back) * SEMS (reg caching only introduced last month. * Various combinations of the above (though most of these feel kludgy) Im not precluding commercial solutions or hybrid solutions but the usual suspects (Acme, Meta, Sonus, etc) are off the table here due to either the cost or the software/virtualization requirements. Thanks in advance, -Ryan

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Anyone with Charter?
by david＠ringfree.biz July 2, 2015

July 2, 2015

Any Charter engineers (Specifically networking) on this list? Or does anyone have a contact? We're having issues with one of their pieces of equipment dropping packets in the Asheville area. And so far we can't get anyones attention. Thanks David -- [image: Ringfree Communications, Inc] <http://ringfree.biz/> David Wessell / President 828-575-0030 x101/ david at ringfree.biz Ringfree Communications, Inc Office: 828-575-0030 / Fax: 888-243-7830 PO BOX 1994 Hendersonville, NC 28793 http://ringfree.biz This e-mail message may contain confidential or legally privileged information and is intended only for the use of the intended recipient(s). Any unauthorized disclosure, dissemination, distribution, copying or the taking of any action in reliance on the information herein is prohibited. E-mails are not secure and cannot be guaranteed to be error free as they can be intercepted, amended, or contain viruses. Anyone who communicates with us by e-mail is deemed to have accepted these risks. Company Name is not responsible for errors or omissions in this message and denies any responsibility for any damage arising from the use of e-mail. Any opinion and other statement contained in this message and any attachment are solely those of the author and do not necessarily represent those of the company.

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(no subject)
by voiceops＠slakos.com July 1, 2015

July 1, 2015

Hello All ? I would like to ask how heavily each of us (or our customers) depend on DIA or other non-QoS transport to handle signaling and media on trunking (carrier-to-carrier carrier-to-operator) side of networks. I created the following survey to preserve anonymity of all answering: https://www.surveymonkey.com/s/SKQPQZP I will review the results in few days. Let me know if you would like me to share and Thanks in advance for participating. Thank you, Slava Kosoy

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t-mobile
by zavoid＠gmail.com June 30, 2015

June 30, 2015

anyone know what is going on at t-mobile tonight??

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Alliance Global Networks contact
by chris＠aperturefiber.com June 29, 2015

June 29, 2015

Is there anyone from Alliance on-list?

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Which Softswitch?
by peter＠4isps.com June 29, 2015

June 29, 2015

Alex, either way - open source or commercial - you have a dependency. I have consulted for many companies offering Hosted VoIP of all flavors in North America. What I have found is that most people serious about delivering a quality service go the commercial route for scalability, support, less risk and known quantity. The ones that go open source, generally tinker. They are more enamored with the tech than the service. I have clients that use a combo of switches - Acme or Sansay with Asterisk and Meta and Taqua and BSFT. In either scenario - open source vs. commercial - retaining talent is significant. It isn't like if you go open source all your problems are easily solved. And I have seen spectacular failures from companies that went cheap, went open and crashed, because the mentality was go open, it is inexpensive. However, there is overhead with that including knowing how to cluster for scale, which very few people know how to do effectively. There is nothing wrong with open source as long as the mentality is: I am going that route to save money and offer VoIP as cheaply as possible. That is a disaster. One last example: M5 before Shoretel bought them. They dumped M6/BSFT and built their own platform. The cost of the developers to keep the platform running and upgraded was just a little cheaper than the BSFT mafia vig. There isn't a way around the cost of putting together a carrier grade service delivery platform. You pay it one way or another. Just my 2 cents from over 10 years of consulting on VoIP. -- Regards, Peter Radizeski @ RAD-INFO INC Circuits * Bandwidth * Consulting (813) 963-5884 "The clever ones get support contracts for core open source software from the open source software project" Oh, indeed. But it just doesn't feel as satisfying as having a long dependency chain of medium-to-large companies to blame, escalating that blame through sclerotic TACs and offshore NOCs. :-) ? -- Alex Balashov | Principal | Evariste Systems LLC 303 Perimeter Center North, Suite 300 Atlanta, GA 30346 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web:http://www.evaristesys.com/, http://www.csrpswitch.com/

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Polycom CX300 R2 Speakerphone Mic
by rdawson＠force3.com June 26, 2015

June 26, 2015

Hello all, wondering if anyone might have a Polycom CX300 R2 that they wouldn?t mind cracking open and photographing how the speakerphone mic is connected? Need to investigate the feasibility of removing it from some phones for a customer. Thanks, Rob

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Mediacom and/or Charter Translations Department Conact
by telephonetoughguy83＠gmail.com June 25, 2015

June 25, 2015

Does anyone have contact information for the routing/translations departments at either Mediacom or Charter? Our tier 2 supervisor has spent several hours over the past few weeks trying to get both companies to fix routing issues that are affecting our customers (their customers can't call our customers). He's having great difficulty getting a hold of anyone at either company that can help him out. If it matters, the region I'm talking about is the Midwest (Iowa, Illinois, Missouri). Thanks, Andy Smith

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AT&T Cellular - DTMF
by Adam.Vocks＠cticomputers.com June 25, 2015

June 25, 2015

I've got an odd problem that someone might be able to point me in the right direction to get some help. AT&T cellular customer calls a number destined to our LRN. Customer presses a digit on the phone, no DTMF audio ever comes across the trunk. If that same customer calls a number with the same npa/nxx not destined for our LRN, DTMF audio comes across the trunk. These calls are coming to us via SS7 trunks and the ILEC that these calls transit through has verified that both calls come in on the same trunks, one has DTMF audio, one does not. This problem started on Thursday morning. Prior to Thursday morning, AT&T cellular calls were arriving to us via our FGD Tandem connection, now they are arriving via the local rate center switch. I've talked to AT&T and attempted to put in a ticket on the DS3 that enters the ILEC, but they refused to do that because they said the DTMF would be audio and they would just pass it through. Anyone have advice? AT&T (low level tech) states that the DTMF tones are generated at the phone and are in the audio stream the entire way. Does anyone know if AT&T uses some sort out of band dtmf signaling? Thanks! Adam Vocks CTI Fiber

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How to assure LNP accuracy as a small ITSP
by april＠teliax.com June 24, 2015

June 24, 2015

Hi Carlos, This depends on how you port. Are you acting as a facilities-based LEC with access to NPAC and tools like PortPS? In that case, it's (somewhat) straightforward to find LNP rules from carriers you're porting away from. A Google for "Teliax LNP Rules" for example brings up our LNP business rules that describe how to obtain a CSR or submit an LSR. Replace Teliax with $carrier and you might be surprised by the results. Surprised, as in, going from zero to LSR sent with CenturyLink took almost two full days...but porting from Bandwidth CLEC took almost no time at all since they publish their LNP rules and processes in an easy-to-find manner. My experience has been, the more internet-oriented the company, or the smaller the company, the easier it is to port numbers out. Some carriers like Level 3 are large, but internet-oriented, and so their LNP tools and portal make LNP very easy. Not to rag on CenturyLink, but as a tiny carrier, I had to submit 3 separate LSOG-type forms for a simple port. Just to put it out there, ATIS offers the NGIIF Contact Directories. It only requires an email to register and gives you access to *some* LNP (and repair) contacts: http://www.atis.org/ngiif/contactdir.asp If you're porting via 3rd parties (Carrier does the porting on behalf of you, and your customer) this gets difficult. Porting without access to LNP portals or CSR information can be brutal. In this case, I'd echo Matthew C.'s comments, get a phone bill (or way better, a CSR) from your end-user and submit it along with your LOA. CSRs are king, some carriers just don't offer them at all, others darn-near require them to port out (which, by the way, requiring a CSR to be obtained prior to a port is against the rules) but as you said, you can get incorrect CSRs from LECs with outdated or otherwise silly records. One last thing, I'd really encourage all carriers to publish accurate and updated information in the NGIIF contact directories and publish accurate LNP business rules...and make them easy to find :) LNP is inevitable, might as well make it as easy for the next LEC as you'd want it easy for you. > ---------- Forwarded message ---------- > From: Carlos Alvarez <caalvarez at gmail.com> > To: "voiceops at voiceops.org" <voiceops at voiceops.org> > Cc: > Date: Tue, 23 Jun 2015 20:11:02 +0000 > Subject: [VoiceOps] How to assure LNP accuracy as a small ITSP > Without any access to directly verify phone numbers, we run into quite a > lot of issues and rejections because of erroneous customer info that > doesn't match what the carrier has. What do some of you do to assure the > highest possible accuracy and success? > >

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