Ciptex incident

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

Minor Resolved View vendor source →

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

Started
May 02, 2026, 06:04 PM UTC
Resolved
May 08, 2026, 05:00 AM UTC
Duration
5d 10h
Detected by Pingoru
May 02, 2026, 06:04 PM UTC

Affected components

Twilio Voice, Europe

Update timeline

  1. investigating May 02, 2026, 06:04 PM UTC

    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.

  2. identified May 02, 2026, 06:06 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. Twiloo 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 03, 2026, 08:28 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 2 hours or as soon as more information becomes available.

  4. identified May 03, 2026, 01:36 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. 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.

  5. monitoring May 04, 2026, 08:53 AM UTC

    Twilio 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.

  6. monitoring May 06, 2026, 08:10 AM UTC

    Twilio 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.

  7. monitoring May 06, 2026, 01:14 PM UTC

    Twilio have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom and is monitoring service stability. We will provide another update in 16 hours or as soon as more information becomes available.

  8. monitoring May 07, 2026, 07:59 AM UTC

    Twilio has 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.

  9. resolved May 08, 2026, 05:00 AM UTC

    Following comprehensive monitoring, we can confirm that the incident has been fully resolved and all services have returned to normal operation.