<story><title>A coding error caused Rogers outage that left millions without service</title><url>https://www.theglobeandmail.com/business/article-how-a-coding-error-caused-rogers-outage-that-left-millions-without/</url></story><parent_chain><item><author>somerandomqaguy</author><text>There&amp;#x27;s a reddit thread going on that was discussing an interesting edge case in regards to 911 and the outage.&lt;p&gt;In Canada 911 service is accessible without a SIM card; if your phone doesn&amp;#x27;t have a SIM, any cell tower should in theory still accept and route the call as normal. However in Roger&amp;#x27;s case, because the cell towers and their authentication mechanisms were still operational, any 911 call with a Roger&amp;#x27;s SIM card in it would route through Roger&amp;#x27;s network and only Roger&amp;#x27;s network; the one that couldn&amp;#x27;t service any calls. In essence, your 911 service was completely cut off.&lt;p&gt;The workaround is to pull the SIM card prior to making the 911 call, but it leaves an interesting question about what you&amp;#x27;re supposed to do in an eSIM world where pulling the SIM is not possible but you&amp;#x27;re again in this kind of situation.&lt;p&gt;To be clear I don&amp;#x27;t know if this is a real problem or not, but it is an interesting thought either way.</text></item></parent_chain><comment><author>yurymik</author><text>Even if you do have a physical sim card, finding sim card ejector isn&amp;#x27;t trivial, especially in a situation when you do need to call 911.</text></comment>
<story><title>A coding error caused Rogers outage that left millions without service</title><url>https://www.theglobeandmail.com/business/article-how-a-coding-error-caused-rogers-outage-that-left-millions-without/</url></story><parent_chain><item><author>somerandomqaguy</author><text>There&amp;#x27;s a reddit thread going on that was discussing an interesting edge case in regards to 911 and the outage.&lt;p&gt;In Canada 911 service is accessible without a SIM card; if your phone doesn&amp;#x27;t have a SIM, any cell tower should in theory still accept and route the call as normal. However in Roger&amp;#x27;s case, because the cell towers and their authentication mechanisms were still operational, any 911 call with a Roger&amp;#x27;s SIM card in it would route through Roger&amp;#x27;s network and only Roger&amp;#x27;s network; the one that couldn&amp;#x27;t service any calls. In essence, your 911 service was completely cut off.&lt;p&gt;The workaround is to pull the SIM card prior to making the 911 call, but it leaves an interesting question about what you&amp;#x27;re supposed to do in an eSIM world where pulling the SIM is not possible but you&amp;#x27;re again in this kind of situation.&lt;p&gt;To be clear I don&amp;#x27;t know if this is a real problem or not, but it is an interesting thought either way.</text></item></parent_chain><comment><author>gumby</author><text>&amp;gt; The workaround is to pull the SIM card prior to making the 911 call, but&lt;p&gt;The actual “but” clause is nobody is going to be able to diagnose the problem just from the terminal device.  It’s like when our cable service goes down* the kids shout out “WiFi is down” (while to me it’s working fine).&lt;p&gt;* this happens a lot because I live in Palo Alto which, despite having deployed fibre close to every address in the city back in the 1980s was never able to actually, you know, deploy IP service.</text></comment>