A recent 911 service disruption in multiple Canadian provinces lasting nearly 90 minutes was attributed to an undisclosed software flaw in Bell’s system, the company revealed in a statement on Friday. The incident, described as a “latent software issue,” impacted regions including Manitoba, Ontario, Quebec, New Brunswick, Nova Scotia, and Prince Edward Island at 3:13 a.m. ET on September 17.
Bell clarified that the outage was not the result of a cyberattack or any planned changes. The glitch affected components of Bell’s advanced 911 system, known as NG9-1-1, designed to enhance emergency response by allowing the public to provide detailed information to dispatchers.
After 87 minutes, Bell identified and resolved the root cause, implementing a permanent fix later that morning. Although the disruption affected service in six provinces, the company assured that the majority of calls were successfully managed by backup systems.
According to the report submitted to the Canadian Radio-television and Telecommunications Commission (CRTC), the missed calls during the outage did not lead to critical public safety incidents. Bell, emphasizing its commitment to emergency calling services, mentioned that steps have been taken to prevent a recurrence of such incidents.
The report also highlighted that early alarms failed to trigger a crisis response at the onset of the outage, delaying engineer notification until a separate alarm system detected the issue. Bell is investigating the alarm failures and has implemented additional monitoring mechanisms as a precaution.
To ensure system reliability, Bell is conducting a thorough review of its operations and sharing insights with other service providers. Specific details about the software flaw causing the outage were redacted from the public report to prevent potential exploitation by hackers.
While the Canadian 911 system is generally resilient, occasional technical challenges can occur, as acknowledged by Holly Barkwell, the Canadian region director for the National Emergency Number Association (NENA). The CRTC has mandated the decommissioning of all legacy 911 systems in Canada by a specific deadline, which was recently extended by two years to allow for a smoother transition.