ONSIM experienced a notice incident on November 19, 2025 affecting Voice and Data and 1 more component, lasting 2h 4m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Nov 19, 2025, 10:55 AM UTC
We are seeing a service degradation on the platform which is causing subscribers to de-register from the network when attempting to make calls and unable to receive inbound calls. We are only aware of this impacting iPhone devices currently. This is impacting subscribers registrations, as well as those registered and attempting to make calls over the mobile network. Subscribers using Wifi calling will not be impacted at this time.
- investigating Nov 19, 2025, 12:25 PM UTC
While we are still investigating, we do not believe the issue is widespread. We will provide a further update in due course.
- investigating Nov 19, 2025, 12:58 PM UTC
The issue of reported degradation was localized to a few users and resolved. We believe we are fully functional at this time.
- resolved Nov 19, 2025, 12:59 PM UTC
This incident has been resolved.