# Twilio: Spikes in Call Signing Failures

> Twilio status incident “Spikes in Call Signing Failures” on 2025-09-20: impact minor (vendor’s label), 51 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/7z9fnhbqczf1
Last updated: 2025-09-20T17:03:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2025-09-20 16:12 UTC · Resolved: 2025-09-20 17:03 UTC · Duration: 51 min
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/7z9fnhbqczf1](https://status.twilio.com/incidents/7z9fnhbqczf1)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2025-09-20 17:03 UTC: The issue affecting a small subset of calls that may have completed without STIR/SHAKEN signature has been resolved, and the service is functioning normally at this time.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: minor) posted by Twilio, started 2025-09-20 16:12 UTC, resolved after 51 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/7z9fnhbqczf1
- Citation: Twilio, “Spikes in Call Signing Failures” (2025-09-20 16:12 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/7z9fnhbqczf1 (CC BY 4.0).
- Markdown link: `[Twilio: Spikes in Call Signing Failures (2025-09-20)](https://rewindex.com/company/twilio/incidents/7z9fnhbqczf1)`


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Canonical: https://rewindex.com/company/twilio/incidents/7z9fnhbqczf1 · Markdown: https://rewindex.com/company/twilio/incidents/7z9fnhbqczf1.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/7z9fnhbqczf1 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T14:47:12.739Z