# Sinch: Sinch Scheduled Maintenance - Core Voice Calling Services - SBCs & Carrier Gateways

> Sinch maintenance “Sinch Scheduled Maintenance - Core Voice Calling Services - SBCs & Carrier Gateways” on 2026-10-21: impact maintenance (vendor’s label), 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/sinch/incidents/h9z51vv25182
Last updated: 2026-10-21T03:12:32Z

- Impact (vendor’s label): maintenance (maintenance)
- Status: scheduled
- Started: 2026-10-21 03:12 UTC · Resolved: not resolved · Duration: ongoing
- Updates: 1 · Affected components: Phone Calling (PSTN), Voice - Phone Calling (PSTN), SIP Trunk, Voice - SIP Trunk
- [Vendor status page: https://stspg.io/w74288wfvgw1](https://stspg.io/w74288wfvgw1)
- [Company: Sinch](https://rewindex.com/company/sinch.md)

## Timeline of updates

- **scheduled** 2026-10-21 03:12 UTC: Sinch Core Voice Calling Services will be undergoing maintenance to include support for: - routing and media handling updates on the call routing platform, including media redirect headers - AMR-WB codec for re-INVITEs to prepare for full support of AMR-WB - improvements for media quality reporting and visibility Sinch is taking precautions to prevent service impacts, but note that the scheduled work may result in a brief interruption with your service. This is being sent as a courtesy notice in the event that you experience issues that extend beyond the maintenance window. We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise accordingly. Please contact support@sinch.com for further information.

## Cite this

Maintenance posted by Sinch, started 2026-10-21 03:12 UTC, not resolved, 1 update(s).

- Canonical URL: https://rewindex.com/company/sinch/incidents/h9z51vv25182
- Citation: Sinch, “Sinch Scheduled Maintenance - Core Voice Calling Services - SBCs & Carrier Gateways” (2026-10-21 03:12 UTC). Archived by Rewindex: https://rewindex.com/company/sinch/incidents/h9z51vv25182 (CC BY 4.0).
- Markdown link: `[Sinch: Sinch Scheduled Maintenance - Core Voice Calling Services - SBCs & Carrier Gateways (2026-10-21)](https://rewindex.com/company/sinch/incidents/h9z51vv25182)`


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Canonical: https://rewindex.com/company/sinch/incidents/h9z51vv25182 · Markdown: https://rewindex.com/company/sinch/incidents/h9z51vv25182.md · JSON: https://rewindex.com/api/v1/companies/sinch/incidents/h9z51vv25182 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T18:42:16.787Z