CloudTalk incident
Outage of outbound calls to Czech mobile and landline numbers
Resolved after 2 hours 40 minutes, affecting Europe (Outbound calls) and Australia (Outbound calls), on April 27, 2026.
Our engineering team has completed their initial diagnostics and confirmed that our internal VoIP infrastructure and network are functioning normally. We have successfully isolated the root cause of the outage to an upstream international carrier partner responsible for routing outbound traffic to the Czech Republic. The carrier is currently experiencing network instability on their end, which is preventing these calls from completing.
Affected components
Update timeline
- investigating Apr 27, 2026, 08:07 AM UTC
We are currently experiencing an outage affecting outbound VoIP calls to Czech Republic phone numbers (prefix +420). Customers attempting to dial these destinations may encounter immediate call drops or error messages.
- identified Apr 27, 2026, 08:10 AM UTC
Our engineering team has completed their initial diagnostics and confirmed that our internal VoIP infrastructure and network are functioning normally. We have successfully isolated the root cause of the outage to an upstream international carrier partner responsible for routing outbound traffic to the Czech Republic. The carrier is currently experiencing network instability on their end, which is preventing these calls from completing.
- resolved Apr 27, 2026, 10:47 AM UTC
Issue has been fully resolved.
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