# Sinch: DI SMS 365 | Enterprise Messaging | Delay in delivery of MO, MT and DR towards AT&T Mobility in United States

> Sinch status incident “DI SMS 365 | Enterprise Messaging | Delay in delivery of MO, MT and DR towards AT&T Mobility in United States” on 2021-12-07: impact minor (vendor’s label), 18 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/sinch/incidents/wdrk5c7v9grz
Last updated: 2021-12-08T11:12:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2021-12-07 17:38 UTC · Resolved: 2021-12-08 11:12 UTC · Duration: 18 h
- Updates: 1
- [Vendor status page: https://status.sinch.com/incidents/wdrk5c7v9grz](https://status.sinch.com/incidents/wdrk5c7v9grz)
- [Company: Sinch](https://rewindex.com/company/sinch.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["Sinch (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** 2021-12-08 11:12 UTC: This incident is resolved. We will continue to monitor the traffic. Impact :: Mobile Terminating (MT) Traffic: Not impacted Mobile Originated (MO) Traffic: Not impacted DR Notification : Not impacted Message Manager: : Not impacted Extranet : Not impacted Incident Start Date & Time (GMT) : 07 Dec 2021 17:00 Hrs. Incident End Date & Time (GMT) : 08 Dec 2021 11:00 Hrs.

_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 Sinch, started 2021-12-07 17:38 UTC, resolved after 18 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/sinch/incidents/wdrk5c7v9grz
- Citation: Sinch, “DI SMS 365 | Enterprise Messaging | Delay in delivery of MO, MT and DR towards AT&T Mobility in United States” (2021-12-07 17:38 UTC). Archived by Rewindex: https://rewindex.com/company/sinch/incidents/wdrk5c7v9grz (CC BY 4.0).
- Markdown link: `[Sinch: DI SMS 365 | Enterprise Messaging | Delay in delivery of MO, MT and DR towards AT&T Mobility in United States (2021-12-07)](https://rewindex.com/company/sinch/incidents/wdrk5c7v9grz)`


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Canonical: https://rewindex.com/company/sinch/incidents/wdrk5c7v9grz · Markdown: https://rewindex.com/company/sinch/incidents/wdrk5c7v9grz.md · JSON: https://rewindex.com/api/v1/companies/sinch/incidents/wdrk5c7v9grz · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T16:09:26.642Z