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SendGrid: Voice Call Audio Quality Degradation between Twilio Phone Numbers and Multiple Networks in Brazil

Affected components: CARRIER NETWORK - Voice, Latin AmericaVoice, Latin America

Timeline of updates

1. investigating2026-10-13 15:18 UTC

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

2. investigating2026-10-13 16:19 UTC

   Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in Brazil. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.

3. identified2026-10-13 16:59 UTC

   Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in Brazil. 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. monitoring2026-10-13 18:01 UTC

   We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks in Brazil and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

5. resolved2026-10-13 20:08 UTC

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

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). SendGrid profile · Recent SendGrid incidents · Markdown · JSON