A recent 911 service disruption in multiple Canadian provinces lasting about 90 minutes was attributed to an unforeseen glitch in Bell’s software, as per the company’s statement on Friday. The incident, which occurred at 3:13 a.m. ET on Sept. 17, affected regions including Manitoba, Ontario, Quebec, New Brunswick, Nova Scotia, and Prince Edward Island.
Bell clarified that the outage was not due to a cyber attack or any planned changes. The root cause was linked to a latent software issue impacting elements of the NG9-1-1 system, which enables the public to provide detailed emergency information to responders for improved situational awareness.
Following the identification of the problem, Bell restored service by 4:40 a.m. and later implemented a lasting fix. The company disclosed that the majority of calls during the disruption were managed successfully through backup systems, with only legacy voice calls routed through older systems being affected.
Although the missed calls did not result in any critical public safety incidents, Bell acknowledged the seriousness of the disruption and assured steps have been taken to prevent a recurrence. The outage was the first of its kind since the NG9-1-1 system launch in early 2022.
In the aftermath, it was revealed that early alarms signaling the issue failed to trigger the necessary response, delaying the resolution process. Bell is investigating why the alarms did not function as expected and has bolstered monitoring mechanisms to prevent similar incidents. The company is also conducting a comprehensive system review and sharing insights with other service providers.
Specific details regarding the software flaw that led to the outage were withheld in the public report to mitigate potential risks of exploitation by hackers. Bell emphasized the importance of safeguarding the integrity of the 911 network to protect public interest.
The Canadian 911 system, which is interconnected with regional legacy telephone providers, is handled by various carriers across different provinces. While the CRTC has mandated the decommissioning of legacy 911 systems by March 31, 2025, challenges with technology persist despite the system’s overall resilience.