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Twilio · Apps and SaaSMar 18, 2026, 12:00 UTC

Voice Call Audio Quality Degradation from T-Mobile United States to a Subset of Twilio United States Phone Numbers

InformationalNot disclosedUpdated 38h ago
Mar 18, 12:00 UTCMar 18, 12:00 UTC
Duration
0m
Impact
Informational
Root cause
Not disclosed
Twilio, 90 days
554 incidents
Affected
Not listed by the vendor.
Status page

Final update

Twilio customers experienced voice call audio quality degradation from T-Mobile network subscribers in the United States to a subset of Twilio United States Phone Numbers from 08:20 PDT 03/18/2026 to 9:30 PDT 03/19/2026. The issue has been resolved.

Timeline

  1. Resolved · Mar 18, 12:00 UTC
    Twilio customers experienced voice call audio quality degradation from T-Mobile network subscribers in the United States to a subset of Twilio United States Phone Numbers from 08:20 PDT 03/18/2026 to 9:30 PDT 03/19/2026. The issue has been resolved.

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