Voice Call Failures and Post Dial Delay from a Subset of Twilio Phone Numbers to United Kingdom

Incident Report for Ciptex

Resolved

Following comprehensive monitoring, we can confirm that the incident has been fully resolved and all services have returned to normal operation.
Posted Aug 31, 2026 - 15:28 BST

Update

We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom and are monitoring service stability.

We will provide another update in 24 hours or as soon as more information becomes available.
Posted Aug 30, 2026 - 08:54 BST

Update

We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom and are monitoring service stability.

We will provide another update in 10 hours or as soon as more information becomes available.
Posted Aug 29, 2026 - 23:12 BST

Update

We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom and are monitoring service stability.

We will provide another update in 16 hours or as soon as more information becomes available.
Posted Aug 29, 2026 - 12:42 BST

Update

We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom and are monitoring service stability.

We will provide another update in 8 hours or as soon as more information becomes available.
Posted Aug 29, 2026 - 03:12 BST

Update

Twilio have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom and are monitoring service stability.

We will provide another update in 4 hours or as soon as more information becomes available.
Posted Aug 28, 2026 - 23:07 BST

Update

We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom and are monitoring service stability.

We will provide another update in 2 hours or as soon as more information becomes available.
Posted Aug 28, 2026 - 21:54 BST

Update

We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom and are monitoring service stability.

We will provide another update in 2 hours or as soon as more information becomes available.
Posted Aug 28, 2026 - 20:23 BST

Update

Twilio have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom and are monitoring service stability.

We will provide another update in 2 hours or as soon as more information becomes available.
Posted Aug 28, 2026 - 19:19 BST

Monitoring

Twilio have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom and are monitoring service stability.

We will provide another update in 2 hours or as soon as more information becomes available.
Posted Aug 28, 2026 - 15:25 BST

Update

Our customers may be experiencing voice call post dial delay and call failures from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom.

The Twilio team has identified the cause, and is working to resolve the issue.

We will provide another update in 16 hours or as soon as more information becomes available.
Posted Aug 28, 2026 - 08:02 BST

Update

Twilio customers may be experiencing voice call failures and post dial delay from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom. Twilio team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
Posted Aug 27, 2026 - 21:59 BST

Update

Our customers may be experiencing voice call post dial delay and call failures from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom.

The Twilio team has identified the cause, and is working to resolve the issue.

We will provide another update in 1 hour or as soon as more information becomes available.
Posted Aug 27, 2026 - 15:46 BST

Identified

Our customers may be experiencing voice call post dial delay and call failures from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom.

The Twilio team has identified the cause, and is working to resolve the issue.

We will provide another update in 1 hour or as soon as more information becomes available.
Posted Aug 27, 2026 - 13:54 BST

Update

We are continuing to investigate this issue.
Posted Aug 27, 2026 - 12:48 BST

Update

Our customers may be experiencing voice call failures and post dial delay from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom.

Our team is actively investigating this issue, and we will provide another update in 1 hour or as soon as more information becomes available.
Posted Aug 27, 2026 - 12:47 BST

Investigating

We have detected potential service disruption through our monitoring systems and are actively investigating. A detailed assessment of the impact and affected services will be provided within the next 30 minutes.
Posted Aug 27, 2026 - 12:45 BST
This incident affected: Twilio (Twilio Voice, Europe).