Twilio incident

Voice Call Audio Quality Degradation Between Twilio Phone Numbers and Multiple Networks in United Kingdom

Minor Resolved View vendor source →

Twilio experienced a minor incident on May 2, 2026 affecting Voice, Europe, lasting 5d 10h. The incident has been resolved; the full update timeline is below.

Started
May 02, 2026, 06:00 PM UTC
Resolved
May 08, 2026, 04:57 AM UTC
Duration
5d 10h
Detected by Pingoru
May 02, 2026, 06:00 PM UTC

Affected components

Voice, Europe

Update timeline

  1. investigating May 02, 2026, 06:00 PM UTC

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

  2. identified May 02, 2026, 06:01 PM UTC

    Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Our 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.

  3. identified May 02, 2026, 07:06 PM UTC

    Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

  4. monitoring May 02, 2026, 07:06 PM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  5. identified May 02, 2026, 07:26 PM UTC

    Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Our 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.

  6. identified May 02, 2026, 08:27 PM UTC

    Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

  7. identified May 02, 2026, 10:27 PM UTC

    Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Our 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.

  8. identified May 03, 2026, 02:28 AM UTC

    Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Our 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.

  9. identified May 03, 2026, 10:35 AM UTC

    Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Our 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.

  10. monitoring May 03, 2026, 11:45 PM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  11. monitoring May 04, 2026, 01:46 AM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  12. monitoring May 04, 2026, 05:52 AM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  13. monitoring May 04, 2026, 01:52 PM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  14. identified May 04, 2026, 07:23 PM UTC

    Twilio customers may be experiencing voice call audio quality degradation from Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Our 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.

  15. identified May 04, 2026, 08:30 PM UTC

    Twilio customers may be experiencing voice call silent audio from network subscribers to a Subset of Twilio United Kingdom numbers . Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

  16. identified May 04, 2026, 10:38 PM UTC

    Twilio customers may be experiencing voice call silent audio from network subscribers to a Subset of Twilio United Kingdom numbers . Our 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.

  17. identified May 05, 2026, 02:41 AM UTC

    Twilio customers may be experiencing voice call silent audio from network subscribers to a Subset of Twilio United Kingdom numbers. Our 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.

  18. identified May 05, 2026, 10:42 AM UTC

    Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. Our 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.

  19. monitoring May 05, 2026, 10:44 PM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  20. monitoring May 06, 2026, 12:46 AM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  21. monitoring May 06, 2026, 04:46 AM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  22. monitoring May 06, 2026, 12:47 PM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  23. monitoring May 07, 2026, 04:53 AM UTC

    We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks 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.

  24. resolved May 08, 2026, 04:57 AM UTC

    The incident has been resolved and voice calls between Twilio Phone Numbers and network subscribers on affected networks in the United Kingdom are operating normally.