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remote hands in Mexico City
by shripald＠gmail.com Dec. 4, 2017

Dec. 4, 2017

Hi All, I have a customer in Mexico City and i need a telco tech to trouble shoot an IAD with FXO. Can anyone recommend a someone or some co that would be able to help? thanks! shri

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Anyone from TMO monitoring?
by mwiles＠akabis.com Dec. 1, 2017

Dec. 1, 2017

Is anyone from T-Mobile monitoring? We're running into an issue where a call that's handed-off to TMO gets back a "480 Temporarily not available", of course failing the call. I've compared a call where this isn't happening with a call where it is, and the only thing I see different (other than access IP's) is that on the "bad" call, the audio's set to INACTIVE, but on the "good" call, the audio is SENDRECV. Any thoughts or input would be greatly appreciated! Thanks, Mark

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Feedback request - Redshift Networks
by bmurray＠transbeam.com Nov. 22, 2017

Nov. 22, 2017

Hello Folks, Wanted to reach out to the group to see if there was any knowledge of this vendor and their product. -What?s good about the product? -What?s bad about the product? -Any information on company size? ?Specifically their support and their support structure? -What type of environment do you or someone you know have this product installed? -What is the primary function this product serves for your company? -Could you provide some rough numbers on traffic seen by this product? Calls per second / day / month -If you were the decision maker, why did you choose them and what other products where being evaluated? http://www.redshiftnetworks.com/ Happy Thanksgiving! --------------------- Brian J Murray

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SUBSCRIBE/NOTIFY method for CNAM querying
by abalashov＠evaristesys.com Nov. 17, 2017

Nov. 17, 2017

Hello, SIP redirects are the generally accepted transport for generic data queries (e.g. LRN dips, CNAM) over SIP. However, there is another method, which is used by Metaswitch, Sansay, and possibly some other softswitch vendors: the SUBSCRIBE-NOTIFY method. This is one in which an ephemeral presence subscription (i.e. with an Expires: value of 0) is created by the querying switch, and the CNAM gateway returns a NOTIFY some time later containing the CNAM data reply some time later in its body. The most complete explanation, including some limited insight into design rationales, is available from Neustar, who offer this query method: https://www.neustar.biz/resources/cnam/data-services-lidb-user-guide.pdf See Chapter 7 - IP-CNAM Speification (page 25). This is a weird and, in my opinion, ill-conceived mechanism[1]. Nevertheless, it is widely implemented. What I can't seem to figure out is where the formal definition of the standard comes from. It's certainly not an IETF RFC. The Metaswitch CFS provides a hint: MetaSphere CFS and Metaswitch MGC support performing Caller Name Database (CNAM) lookups by sending SUBSCRIBE messages to a database server, and receiving NOTIFYs containing the caller name. The specification of this interface is non-Metaswitch proprietary information. However, example message flows are shown in A.4.16. Whose proprietary information? I found this Verizon patent: https://www.google.com/patents/US20080240383 But it appears to be concerned with an adaptation layer of this to the ISCP side, though I only skimmed it. And if this is the patent in question, why don't any footnotes in vendor docs refer to it? The footnotes cite the SIP event pub-sub framework (RFC 3265) and little else. What the heck is it? And why did it get to be preferred over redirects for some vendors, especially given that it invokes ? but ultimately foregoes ? most of the bureaucracy of the event subscription mechanism, in a way that's seemingly contradictory. -- Alex [1] For one, it uses attributes in the encapsulated payload which look like headers, but aren't headers: Calling-Name-Status: available Calling-Name: ?Joe Smith? <sip:9726840623 at cnam-subscriber.com;user=phone> Presentation-Indicator: allowed Why bother with an encapsulated body, then? [2] More objectively, a SUBSCRIBE creates a dialog. But if the lifetime of the subscription is zero (expires immediately), presumably the dialog it creates also ends immediately. Why, then, does the NOTIFY have to be structured as an in-dialog NOTIFY (i.e. same From/To tags as the SUBSCRIBE)? -- 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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B/OSS
by LRiemer＠bestline.net Nov. 16, 2017

Nov. 16, 2017

What are you all using for your B/OSS software? Ours is home grown and we're looking to replace. We've looked at Sonar and it has potential but is more ISP/WISP oriented. What are other's experiences in 3rd party solutions? Thanks, Lee Riemer VP Network Operations [Bestline Communications - Carrier to Cloud Expertise]<http://www.bestline.net/> lriemer at bestline.net<mailto:lriemer at bestline.net> Main: 512.328.9095 http://www.bestline.net<http://www.bestline.net/> Toll Free: 800.365.6030

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Local calling tariff database
by abalashov＠evaristesys.com Nov. 15, 2017

Nov. 15, 2017

Where can one get a digest of local access tariffs that is complementary to machine processing? Ten years ago, when I last cared about this, the canonical answer was CCMI. Is that still the answer? Any idea on pricing? Does anyone offer "can-this-NPA-NXX-call-that-NPA-NXX-locally"-aaS, but reliably? -- 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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Local calling tariff database
by erik＠eespro.com Nov. 14, 2017

Nov. 14, 2017

The calling party sets the initial calling area but the LRN has a lot to do with it if it's a ported TN at least in the LATA I'm in. Example below All numbers in the same LATA Caller : 808-369-8000 HNLL rate center via NANPA Called Party: 808-749-8000 outer island LRN for called: 808-439-1000 HNLL rate center CLEC/ILEC level here when the caller attempts the switch completes a dip to query the LRN of the called number. The switch then dials the LRN via SS7 or the tandem prior to the CLEC which is located on the same island same rate center and presents the the Called Number in the Called Number field of the SS7 transmission The answering switch sends the call to the appropriate party. Example 2: Calling Party: 808-749-7000 Same NPA-NXX outer island Calls same Called Party but the LRN is on a different island why because switch is at that location and tandem hence different rate center. As Alex stated the CLEC would pay intrastate toll to complete the call depending on the PIC code but the call would not simply bill as local because caller and called NPA-NXX is the same it's based on the result of the LRN. If no LRN is returned the switch logic if programmed correctly will send the call to the Tandem if the NPA-NXX-X is not located on the switch or out whatever VoIP or Transit Trunk configured. The LRN is associated with the CLLI which has a H. V. Coordinate that is used for distance and billing CABS. On Nov 14, 2017 2:40 PM, "Matthew Crocker" <matthew at corp.crocker.com> wrote: The NPANXX of the CallingParty sets the rate center. The rate center sets the list of all local NPANXX for the CalledParty. If the CalledParty NPANXX is in the list then it is a local call. LRN has nothing to do with it On Nov 14, 2017, at 6:54 PM, Alex Balashov <abalashov at evaristesys.com> wrote: On Tue, Nov 14, 2017 at 01:48:20PM -1000, Erik wrote: You can port out of a rate center what u can't do is port out of a LATA so if you're a clec the LRN does truly matter for cost depending how you route your tandem traffic vs VoIP traffic. You can't port out of a rate centre. -- 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/ _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

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Cisco acquires Broadsoft for approx the GDP of Belize
by ryandelgrosso＠gmail.com Nov. 3, 2017

Nov. 3, 2017

https://www.reuters.com/article/us-broadsoft-m-a-cisco-systems/cisco-buys-b… I cant say im surprised but in this day and age i suspect there will be far less technical synergies than anyone is hoping for. I suspect this bodes best for Metaswitch and netsapiens as some SP's will undoubtedly reconsider BSFT as a platform strategy. Also directly from the article: ??? ?? "BroadSoft provides software and services that enable mobile, fixed-line and cable service providers to offer so-called unified communications over their internet protocol networks." ... ouch Any other thoughts?

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Netsapien reviews
by matthew＠corp.crocker.com Nov. 3, 2017

Nov. 3, 2017

Hello, I?m a Broadsoft Broadworks shop but I?m looking at alternatives, Not a YUGE fan of Cisco? If you have an opinion on NetSapien as a HostedPBX platform (good, bad, ugly) please send to me on or off list. Thanks -Matt -- Matthew Crocker Crocker Communications, Inc. President

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Chinese language phone scam cals
by jaybinks＠gmail.com Oct. 27, 2017

Oct. 27, 2017

I've become aware of scam calls targeting seemingly random numbers with chines language voice recordings supposedly saying they are from the Chinese Embassy. The current flavour of this message is something similar to "This is the Chinese Embassy, you have an important message to be collected. If you have any questions press 0. Our Chinese language department will be able to assist you." I've found the following in the media about this, so it seems to be fairly widespread. - https://www.3aw.com.au/chinese-phone-scam-targets-australian-numbers/ - http://www.cbc.ca/news/canada/british-columbia/chinese-embassy-phone-scam-1… - http://dailyhive.com/vancouver/chinese-phone-scam-vancouver - http://news.xinhuanet.com/english/2017-08/10/c_136513524.htm I know of people receiving 10000 calls per day, and I've personally been seeing 5000 calls per day apparently for this scam. The caller ID is probably spoofed, but it appears to be spoofed within the one 1000 block of numbers. ( that I'm aware of, so far ) I guess id like to know if anyone else is seeing this, and what if anything, do we know about this scam so far? -- Sincerely Jay

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