# Plivo: Intermittent call failures on the Voice API towards Plivo endpoints in US West region

> Plivo status incident “Intermittent call failures on the Voice API towards Plivo endpoints in US West region” on 2021-12-07: impact minor (vendor’s label), 2 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/plivo/incidents/pjtymc7z89dz
Last updated: 2021-12-07T17:40:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2021-12-07 17:38 UTC · Resolved: 2021-12-07 17:40 UTC · Duration: 2 min
- Updates: 1
- [Vendor status page: https://status.plivo.com/incidents/pjtymc7z89dz](https://status.plivo.com/incidents/pjtymc7z89dz)
- [Company: Plivo](https://rewindex.com/company/plivo.md)

## Part of an outage event

- [AWS us-east-1 outage, Dec 7, 2021: 47 vendors, 59 incidents](https://rewindex.com/events/2021-12-07-aws-us-east-1)
- This incident depends on AWS (declared dependency, named as a cause before); it did not name AWS. (hop 1, posted +1 h 48 min vs the first vendor naming AWS)

```mermaid
flowchart LR
  root["AWS us-east-1<br/>own incident not archived"]:::inferred
  h1["Within an hour<br/>11 vendors, 9 blamed AWS<br/>Aptible, Firebolt, Honeycomb +8"]:::blames
  root --> h1
  h4["1 to 4 hours later<br/>16 vendors, 12 blamed AWS<br/>Maven Central, Pusher, Confluent +13"]:::blames
  root --> h4
  later["Later<br/>3 vendors, 2 blamed AWS<br/>Segment, Confluent, Doppler"]:::blames
  root --> later
  dr["Known dependency<br/>8 vendors<br/>Bandwidth, Sinch, Smartsheet +5"]:::hop2
  root -.->|"depends on AWS"| dr
  me["Plivo (this incident)<br/>posted +1 h 48 min"]:::me
  root -.->|"known dependency"| me
```

_Detected automatically from incidents that started together and named the same provider; a link means one incident named another vendor, not a confirmed cause._

## Timeline of updates

- **resolved** 2021-12-07 17:40 UTC: This incident has been resolved.

_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 Plivo, started 2021-12-07 17:38 UTC, resolved after 2 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/plivo/incidents/pjtymc7z89dz
- Citation: Plivo, “Intermittent call failures on the Voice API towards Plivo endpoints in US West region” (2021-12-07 17:38 UTC). Archived by Rewindex: https://rewindex.com/company/plivo/incidents/pjtymc7z89dz (CC BY 4.0).
- Markdown link: `[Plivo: Intermittent call failures on the Voice API towards Plivo endpoints in US West region (2021-12-07)](https://rewindex.com/company/plivo/incidents/pjtymc7z89dz)`


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Canonical: https://rewindex.com/company/plivo/incidents/pjtymc7z89dz · Markdown: https://rewindex.com/company/plivo/incidents/pjtymc7z89dz.md · JSON: https://rewindex.com/api/v1/companies/plivo/incidents/pjtymc7z89dz · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T15:12:53.923Z