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Information required for a Traceback investigation
by glen＠cognexus.net Dec. 28, 2020

Dec. 28, 2020

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Metaswitch
by ryan.finnesey＠conovence.com Dec. 26, 2020

Dec. 26, 2020

I wanted to get some feedback from the people that are using Metaswitch How are things are going with the Microsoft acquisition/ Thanks for your feedback. Ryan

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SS7 problems
by dfrigen＠wabash.net Dec. 21, 2020

Dec. 21, 2020

We've narrowed this down to calls completing on our facilities (from likely least cost routing) down an AT&T TDM/SS7 terminating trunk group. We have no contacts for this trunk group, and even turned the trunk group down for a day thinking we would get a call, but didn't. We're still getting two calls to a single number, one call with caller on it and the other with dead air. The dual calls are coming from various service providers on this trunk group. Anyone have any suggestions? Dave From: Dave Frigen <dfrigen at wabash.net> Sent: Friday, December 11, 2020 11:55 AM To: 'voiceops at voiceops.org' <voiceops at voiceops.org> Cc: 'Rodney Young' <Rodney at wabash.net>; 'Don Ross' <deross at wabash.net>; 'Barry Adair' <barryadair at wabash.net> Subject: SS7 problems I know SS7 is not a big part of the voice world for many of you, but for those of you still exposed to it, just curious if anyone experienced any problems with SS7 signaling in the past couple of days where Terminating signaling times out and a 2nd retry and new call set up for the call delivery occurs. The result was the phone ringing the customer, no one there. Second attempt successfully (if multiline hunt group) comes in on next line/trunk. Trouble tickets reported: Customers complaining about phones ringing, no one on the other end. We traced the issue upstream in the SS7 signaling. The signaling was timing out after 15 seconds, creating call retry. We had our SS7 provider look into it. No trouble found, but the "gremlins" mysteriously disappeared after the testing..concerned trouble may reoccur. Any reference to anyone else experiencing these issues recently would be appreciated. Dave Dave Frigen Chief Operating Officer Wabash Communications CO-OP | www.wabash.net <http://www.wabash.net> Office: 618.665.3311 <https://www.facebook.com/wabashcommunicationscoop/> <https://www.instagram.com/wabashcommunications/> <https://www.youtube.com/channel/UCWoo3wyybeYEnTpTxK2jbUg> <https://www.linkedin.com/company/18788687/admin/> <http://www.wabash.net/>

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SS7 problem
by dfrigen＠wabash.net Dec. 11, 2020

Dec. 11, 2020

We narrowed to calls coming from Verizon Wireless. We?re located in southern Illinois, we?re thinking this could be a regionalized issue??again any input is welcome. We?re seeking a good way to contact Verizon Wireless. Thanks Dave From: Feby Francis <feby.francis at crosstel.com> Sent: Friday, December 11, 2020 1:09 PM To: dfrigen at wabash.net Subject: SS7 problem Hello Dave, No issues with the SS7 networks we manage. Any particular carrier or all the calls via tandems. Regards, Feby Francis | Crosstel Inc | In Telecom by Grace Direct:+1-470-414-2044 Cell:+1-706-332-4242 _________________________________________________________________________ Confidentiality Notice: This e-mail and any attachments may contain confidential information intended solely for the use of the addressee. If the reader of this message is not the intended recipient, any distribution, copying, or use of this e-mail or its attachments is prohibited. If you received this message in error, please notify the sender immediately by e-mail and delete this message and any copies. Thank you P Please consider the environment before printing this e-mail

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SS7 problems
by dfrigen＠wabash.net Dec. 11, 2020

Dec. 11, 2020

I know SS7 is not a big part of the voice world for many of you, but for those of you still exposed to it, just curious if anyone experienced any problems with SS7 signaling in the past couple of days where Terminating signaling times out and a 2nd retry and new call set up for the call delivery occurs. The result was the phone ringing the customer, no one there. Second attempt successfully (if multiline hunt group) comes in on next line/trunk. Trouble tickets reported: Customers complaining about phones ringing, no one on the other end. We traced the issue upstream in the SS7 signaling. The signaling was timing out after 15 seconds, creating call retry. We had our SS7 provider look into it. No trouble found, but the "gremlins" mysteriously disappeared after the testing..concerned trouble may reoccur. Any reference to anyone else experiencing these issues recently would be appreciated. Dave Dave Frigen Chief Operating Officer Wabash Communications CO-OP | www.wabash.net Office: 618.665.3311 <https://www.facebook.com/wabashcommunicationscoop/> <https://www.instagram.com/wabashcommunications/> <https://www.youtube.com/channel/UCWoo3wyybeYEnTpTxK2jbUg> <https://www.linkedin.com/company/18788687/admin/> <http://www.wabash.net/>

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Definition: Local Calls
by voiceops＠ics-il.net Dec. 10, 2020

Dec. 10, 2020

Is there any legal definition as to what constitutes local calls? I know that Local Calling Guide reports on what the ILECs treat as local, but I don't know if there's anything that is requiring me to have the same definition. My operating theory is that if it's on the same tandem switch, I might as well treat it as local. For reporting purposes (state and federal) would local calls be treated as intrastate calls when not otherwise broken out? ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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STIR/SHAKEN for call centers
by patrick.labbett＠gmail.com Dec. 3, 2020

Dec. 3, 2020

Hello, I'm looking for guidance/feedback on the impact of STIR/SHAKEN on the call center and answering service industries. Very few are interconnected VoIP service providers themselves. Specifically, customers of these industries often desire the call center utilize their company phone number when contacting their employees or customers for an improved end-user experience. The worry is that STIR/SHAKEN will be implemented in a way that causes these "spoofed" calls (that have legitimate business relationships in place) to be marked as such or eventually blocked as STIR/SHAKEN tightens it's grip on malicious intent. Here is my understanding of the situation: As a customer of an Originating carrier, the Call Center's outbound calls will be signed by their Originating carrier's STIR/SHAKEN certificate - so as long as the SIP Identity header isn't modified in transit and the certificate is validated on the Terminating side, everything should continue to work normally for us as end users. So this is largely the carrier's problem, and not the call centers. However, it's not clear (to me) how the Attestation aspect of things will work (and if it even effects the typical customer): - Does just being a customer of the Originating Carrier give the Call Center's calls Full Attestation? - As a call center, if spoofing a number not owned/in inventory, would that be Partial Attestation? - Does the owner/location of the spoofed number matter, i.e. : - Partial Attestation: Number owned by Originating carrier, but not by customer making call - Gateway Attestation: Number not owned by Originating carrier (and by extension not owned by customer making the call) - Will different Terminating carriers treat Attestation designations differently? - Is this largely a framework that carriers will implement some day in the future? Am I way overthinking this? (Yes.) Thank you in advance for any perspective you can offer, or resources you can direct me to. My personal plan of attack for call centers: - Document permission and business use case for numbers spoofed on behalf of customers - That's it - that's the whole plan. - ???? Aside from making sure my carriers know I exist and that I have permission to use those numbers, what else is there? -Patrick Labbett

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Verizon Wireless Porting
by voiceops＠ics-il.net Nov. 24, 2020

Nov. 24, 2020

Does anyone know where to go at Verizon Wireless to get set up for porting? My Google-fu seems to be lacking. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com

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Preventing unauthorized access to SIP device config files
by ciscoplumber＠gmail.com Nov. 17, 2020

Nov. 17, 2020

For providers that have centralized SIP device management that is available on the internet how have you been protecting your configurations from unauthorized access over https? Are there any specific measures that you found most helpful? I am assuming that certificate authentication is probably the best option. For people that are doing this, are you using the factory installed certs from the hardware provider or installing your own certificates on the devices? Are there any lessons learned on using certs that you can share? Thanks

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The number you have dialed is unallocated
by sean＠commandlink.com Nov. 16, 2020

Nov. 16, 2020

Getting this message through multiple carriers this morning, including through google voice? Anyone aware of issues to numbers of "Teleport Communications America, LLC" in PA? Sean

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