Insufficient Redundancy? Light-Pole Installation Cut Fiber Line, Triggered Three-State 911 Outage

“Workers installing a light pole in Missouri cut into a fiber line,” reports the Associated Press, knocking out 911 phone service “for emergency agencies in Nebraska, Nevada and South Dakota, an official with the company that operates the line said Thursday.”

In Kansas City, Missouri, workers installing a light pole for another company Wednesday cut into a Lumen Technologies fiber line, Lumen global issues director Mark Molzen said in an email to The Associated Press. Service was restored within 2 1/2 hours, he said. There were no reports of 911 outages in Kansas City…

The Dundy County Sheriff’s Office in Nebraska warned in a social media post Wednesday night that 911 callers would receive a busy signal and urged people to instead call the administrative phone line. About three hours later, officials said mobile and landline 911 services had been restored. In Douglas County, home to Omaha and more than a quarter of Nebraska’s residents, officials first learned there was a problem when calls from certain cellphone companies showed up in a system that maps calls but didn’t go through over the phone. Operators started calling back anyone whose call didn’t go through, and officials reached out to Lumen, which confirmed the outage. Service was restored by 4 a.m.
Kyle Kramer, the technical manager for Douglas County’s 911 Center, said the outage highlights the potential problems of having so many calls go over the same network. “As things become more interconnected in our modern world, whether you’re on a wireless device or a landline now, those are no longer going over the traditional old copper phone wires that may have different paths in different areas,” Kramer said. “Large networks usually have some aggregation point, and those aggregation points can be a high risk.”
Kramer said this incident and the two previous 911 outages he has seen in the past year in Omaha make him concerned that communications companies aren’t building enough redundancy into their networks.

South Dakota officials called the state-wide outage “unprecedented,” with their Department of Public Safety reporting the outage lasted two hours (though texting to 911 still worked in most locations — and of course, people could still call local emergency services using their non-emergency lines.) America’s FCC has already begun an investigation.
The article notes that “The outages, ironically, occurred in the midst of National Public Safety Telecommunicators Week.”

Thanks to long-time Slashdot reader davidwr for sharing the article.

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