<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">The question was (essentially) about mitigating the impact of an SS7 outage (disguised as a question about who provides SS7 these days (nobody, if they can avoid it)). If the SS7 links go down and you only have a small amount of your traffic affected, I call that a huge win.<br class="">
<div><br class=""><blockquote type="cite" class=""><div class="">On Jan 23, 2022, at 6:33 AM, Mike Hammett <<a href="mailto:voiceops@ics-il.net" class="">voiceops@ics-il.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta charset="UTF-8" class=""><div style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: arial, helvetica, sans-serif; font-size: 10pt;" class="">Well right, but wouldn't I still need all of the same stuff (perhaps a few less trunks to specific switches, only now I have fewer minutes to spread the costs over?<br class=""><br class=""><div class=""><span name="x" class=""></span><br class=""><br class="">-----<br class="">Mike Hammett<br class="">Intelligent Computing Solutions<br class=""><a href="http://www.ics-il.com/" class="">http://www.ics-il.com</a><br class=""><br class=""><br class=""><br class="">Midwest Internet Exchange<br class=""><a href="http://www.midwest-ix.com/" class="">http://www.midwest-ix.com</a><br class=""><br class=""><span name="x" class=""></span><br class=""></div><br class=""><hr id="zwchr" class=""><div style="font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica, Arial, sans-serif; font-size: 12pt;" class=""><b class="">From:<span class="Apple-converted-space"> </span></b>"Paul Timmins" <<a href="mailto:paul@timmins.net" class="">paul@timmins.net</a>><br class=""><b class="">To:<span class="Apple-converted-space"> </span></b>"Mike Hammett" <<a href="mailto:voiceops@ics-il.net" class="">voiceops@ics-il.net</a>><br class=""><b class="">Cc:<span class="Apple-converted-space"> </span></b>"voiceops" <<a href="mailto:voiceops@voiceops.org" class="">voiceops@voiceops.org</a>><br class=""><b class="">Sent:<span class="Apple-converted-space"> </span></b>Sunday, January 23, 2022 12:01:01 AM<br class=""><b class="">Subject:<span class="Apple-converted-space"> </span></b>Re: [VoiceOps] SS7 Landscape<br class=""><br class="">Even without IPES you can switch your feature group D to voip through these aggregators and get rid of basically everything that isn't the local LEC's legacy network.<div class=""><br class=""><div class=""><br class=""><blockquote class=""><div class="">On Jan 22, 2022, at 7:03 PM, Mike Hammett <<a href="mailto:voiceops@ics-il.net" class="" target="_blank">voiceops@ics-il.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="" style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: arial, helvetica, sans-serif; font-size: 10pt;">Sure, but then I just transfer the problem to someone else, until the traditional PSTN goes away or modernizes. I am working on IPES for expansion markets, though.<div class=""><br class=""></div><div class="">Also, for my home LATA, I'm needing to be in the same building as the primary tandem, so it's kind of a selling point for large customers in that area that I would have fewer opportunities for failures. I don't have to go to Chicago and back to get to the operator in the next row of racks over. Though, I suppose my SS7 diversity and availability is the weakness, not the actual call path.<br class=""><br class=""><div class=""><span class=""></span><br class=""><br class="">-----<br class="">Mike Hammett<br class="">Intelligent Computing Solutions<br class=""><a href="http://www.ics-il.com/" class="" target="_blank">http://www.ics-il.com</a><br class=""><br class=""><br class=""><br class="">Midwest Internet Exchange<br class=""><a href="http://www.midwest-ix.com/" class="" target="_blank">http://www.midwest-ix.com</a><br class=""><br class=""><span class=""></span><br class=""></div><br class=""><hr id="zwchr" class=""><div class="" style="font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica, Arial, sans-serif; font-size: 12pt;"><b class="">From:<span class="Apple-converted-space"> </span></b>"Paul Timmins" <<a href="mailto:paul@timmins.net" class="" target="_blank">paul@timmins.net</a>><br class=""><b class="">To:<span class="Apple-converted-space"> </span></b>"Mike Hammett" <<a href="mailto:voiceops@ics-il.net" class="" target="_blank">voiceops@ics-il.net</a>><br class=""><b class="">Cc:<span class="Apple-converted-space"> </span></b>"voiceops" <<a href="mailto:voiceops@voiceops.org" class="" target="_blank">voiceops@voiceops.org</a>><br class=""><b class="">Sent:<span class="Apple-converted-space"> </span></b>Saturday, January 22, 2022 1:46:46 PM<br class=""><b class="">Subject:<span class="Apple-converted-space"> </span></b>Re: [VoiceOps] SS7 Landscape<br class=""><br class=""><div class="">Reduce your reliance on it more and more. Switch to IP tandems (Inteliquent/Peerless/etc) and ip interconnect. The people who make and support SS7 equipment are in a dying market, the brain drain on it is immense as people retire, and the longer you rely on it, the worse it's gonna get.</div><div class=""><br class=""></div><div class="">TNS is a big dog in the space. But that's not saying much anymore.</div><br class=""><div class=""><br class=""><blockquote class=""><div class="">On Jan 22, 2022, at 10:00 AM, Mike Hammett <<a href="mailto:voiceops@ics-il.net" class="" target="_blank">voiceops@ics-il.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="" style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: arial, helvetica, sans-serif; font-size: 10pt;">We currently get our SS7 via TNS. I (maybe incorrectly) understand them to be a big dog in that space.<div class=""><br class=""></div><div class="">I've had two major problems with them in six months.</div><div class=""><br class=""></div><div class="">What are my alternatives? Are they less pleasant?<br class=""><br class=""><div class=""><span class=""></span><br class=""><br class="">-----<br class="">Mike Hammett<br class="">Intelligent Computing Solutions<br class=""><a href="http://www.ics-il.com/" class="" target="_blank">http://www.ics-il.com</a><br class=""><br class=""><br class=""><br class="">Midwest Internet Exchange<br class=""><a href="http://www.midwest-ix.com/" class="" target="_blank">http://www.midwest-ix.com</a><br class=""><br class=""><span class=""></span><br class=""></div><br class=""></div></div><span class="" style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;">_______________________________________________</span><br class="" style="caret-color: rgb(0, 0, 0); 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