Twilio - Voice Call Audio Quality Degradation Between Twilio Phone Numbers and Multiple Networks in 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 May 02, 2026 - 05:52 BST

Update

Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Twilio team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
Posted May 01, 2026 - 22:48 BST

Identified

Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom.Twilio team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
Posted May 01, 2026 - 22:16 BST

Update

We are continuing to investigate this issue.
Posted May 01, 2026 - 19:27 BST

Update

Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Twilio team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
Posted May 01, 2026 - 19:26 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 May 01, 2026 - 19:24 BST
This incident affected: Twilio (Twilio Voice, Europe).