<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Aptos;
panose-1:2 11 6 4 2 2 2 2 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Aptos",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
span.EmailStyle21
{mso-style-type:personal-reply;
font-family:"Aptos",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
mso-ligatures:none;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body lang="EN-US" link="blue" vlink="purple" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal">Identical timeframes for us. I also asked for an RFO. Please share if you get anything.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We disabled TCAP/LNP lookups and forced all calls outbound to our Inteliquent SIP trunks (I guess maybe they don’t use their own signaling? ) and we were seeing good completion on outbound calls with this configuration. Of course inbound
was limited by the down ISUP trunks to the tandems.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Collin R</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div id="mail-editor-reference-message-container">
<div>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="color:black">From:
</span></b><span style="color:black">VoiceOps <voiceops-bounces@voiceops.org> on behalf of Mike Johnston via VoiceOps <voiceops@voiceops.org><br>
<b>Date: </b>Wednesday, September 11, 2024 at 3:13</span><span style="font-family:"Arial",sans-serif;color:black"> </span><span style="color:black">PM<br>
<b>To: </b>voiceops@voiceops.org <voiceops@voiceops.org><br>
<b>Subject: </b>Re: [VoiceOps] Inteliquent/Sinch SIGTRAN outage</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
</div>
<div style="border:solid #CCCCCC 1.0pt;padding:8.0pt 8.0pt 8.0pt 8.0pt;margin-bottom:15.0pt">
<p>[External Email]: This message is from a sender outside our organization. Exercise caution with links and attachments. Do not share sensitive information unless you verify the sender's identity and trust the content.<o:p></o:p></p>
</div>
<div>
<p>Happened to us as well. No SS7 meant no ISUP with other telcos and no LNP lookups. Both primary and secondary were down.<o:p></o:p></p>
<p>There is a lot of A and B geo-redundancy in their SIGTRAN design. Frustrating for it all to go down at the same time.<o:p></o:p></p>
<p>They have not shared the cause with us. I have told them to send us an RFO. Master ticket 681772.<o:p></o:p></p>
<p>outage start: 2024-09-11T10:13-0500<br>
outage end: 2024-09-11T12:58-0500<br>
outage duration: 2 hours 45 minutes<o:p></o:p></p>
<div>
<p><span style="color:black">Mike Johnston<br>
<a href="https://wiktel.com/" target="_blank"><span style="color:black;text-decoration:none">Wikstrom Telephone Company</span></a>
<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal">On 2024-09-11 11:22, Collin Rose via VoiceOps wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">We lost both our primary and backup SIGTRAN link to Inteliquent at 11:13 EST. Calling in they say some sort large scale outage. Anyone aware of any details ?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal"><b><span style="font-size:14.0pt;color:#757B80">Collin Rose</span></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#4BA524">Day</span><span style="font-size:12.0pt;color:#006FC9">Starr</span><span style="font-size:12.0pt;color:black"> </span><span style="font-size:12.0pt;color:#757B80">Communications</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#757B80">E: </span><span style="font-size:12.0pt;color:#006FC9"><a href="mailto:collin.rose@daystarrfiber.net" title="mailto:collin.rose@daystarrfiber.net"><span style="color:#0563C1">collin.rose@daystarrfiber.net</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#757B80">P: </span><span style="font-size:12.0pt;color:#006FC9">989-720-6000</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#757B80">F: </span><span style="font-size:12.0pt;color:#006FC9">989-720-6060</span><o:p></o:p></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
</div>
</div>
</body>
</html>