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System Metrics
Duplicated Super SIM MT SMS Commands in Very Rare Cases
Incident
Report for Twilio
Resolved
We identified an issue where devices using Super SIM may receive duplicated MT SMS Commands. The error rate is estimated to be 0.084%. By design SMS may be delivered multiple times. For customers who are sending several Commands in a short period, devices are more likely to receive duplicates.
We confirm that MT SMS Commands are billed exactly once, even when delivered multiple times. We have identified the sender(s) with the highest impact and provided a mitigation. We've proceeded ro resolve this incident.
We confirm that MT SMS Commands are billed exactly once, even when delivered multiple times. We have identified the sender(s) with the highest impact and provided a mitigation. We've proceeded ro resolve this incident.
Monitoring
We identified an issue where devices using Super SIM may receive duplicated MT SMS Commands. The error rate is estimated to be 0.084%. By design SMS may be delivered multiple times. For customers who are sending several Commands in a short period, devices are more likely to receive duplicates.
We confirm that MT SMS Commands are billed exactly once, even when delivered multiple times.
We have identified the sender(s) with the highest impact and provided a mitigation. We are continuing to monitor for service stability. We will provide another update in 30 minutes or as soon as more information becomes available.
We confirm that MT SMS Commands are billed exactly once, even when delivered multiple times.
We have identified the sender(s) with the highest impact and provided a mitigation. We are continuing to monitor for service stability. We will provide another update in 30 minutes or as soon as more information becomes available.
Update
We are investigating an issue where devices using Super SIM may receive duplicated MT SMS Commands. The error rate is estimated to be 0.5%. For customers who are sending several Commands in a short period, devices are more likely to receive duplicates. We confirm that MT SMS Commands are billed exactly once, even when delivered multiple times. We are actively working to identify and resolve the issue. We will provide another update in 2 hours or sooner once more information becomes available.
Update
We are investigating an issue where devices using Super SIM may receive duplicated MT SMS Commands. For customers who are sending several Commands in a short period it is more likely to receive duplicates. We are actively working to identify and resolve the issue. We will provide another update in 1 hour or sooner once more information becomes available.
Update
We are continuing to investigate this issue.
Investigating
Our monitoring systems have detected a potential issue with Super SIM. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.