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 July 21, 2026 affecting Voice, Europe, lasting 4h 35m. The incident has been resolved; the full update timeline is below.

Started
Jul 21, 2026, 10:12 AM UTC
Resolved
Jul 21, 2026, 02:47 PM UTC
Duration
4h 35m
Detected by Pingoru
Jul 21, 2026, 10:12 AM UTC

Affected components

Voice, Europe

Update timeline

  1. investigating Jul 21, 2026, 10:12 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 is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

  2. investigating Jul 21, 2026, 11:18 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 is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.

  3. monitoring Jul 21, 2026, 12:39 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.

  4. identified Jul 21, 2026, 01:51 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.

  5. resolved Jul 21, 2026, 02:47 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 2 hours or as soon as more information becomes available.