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Sinch: Sinch Contact Pro Certificate renewal - CUSTOMER ACTION REQUIRED - EU

MaintenancemaintenanceStatus: scheduledStarted Not resolved1 updatestspg.io (opens in new tab)

Affected components: Contact Pro - Contact Pro - EU (Europe)Contact Pro - EU (Europe)

Timeline of updates

  1. scheduled

    Dear Customer,

    The Sinch Contact Pro certificate *.cc.sinch.com will be renewed during Sunday November 8th, 2026.

    Start time: 2026-11-8 (Sunday) 5 AM UTC
    End time: 2026-11-8 (Sunday) 6 AM UTC

    During the maintenance window, all voice channels will experience a short disruption, up to 10 minutes.

    Customer Action:
    The certificate authority and the issuer chain will change to Amazon.
    To avoid potential connection issues, Sinch strongly recommends verifying the certificate trust relationship in advance.

    How to verify the certificate trust relationship:

    Contact Pro UIs (e.g., Communication Panel):
    Visit https://certificatetest.cc.sinch.com/ (opens in new tab), Ensure that no security warnings appear when connecting.

    Integrations using cc.sinch.com (e.g., CRM integrations):
    Check that your system trusts the new issuer chain. You can also test connectivity using URL https://certificatetest.cc.sinch.com/ (opens in new tab) .

    SIP trunks:
    Review your configured trusted issuers to ensure the new issuer chain is accepted.

    New certificate details:

    CN = cc.sinch.com (*.cc.sinch.com)
    Serial: 0A:22:B4:2A:71:41:AF:02:70:2B:81:4A:CC:70:24:EA
    Issuer: CN = Amazon RSA 2048 M04

    CN = Amazon RSA 2048 M04
    Serial: 07:73:12:4F:2A:95:2E:3E:D1:8A:58:BD:B8:5D:1B:C0:CE:5F:27
    Issuer: Amazon Root CA 1

    CN = Amazon Root CA 1
    Serial: 06:6C:9F:CF:99:BF:8C:0A:39:E2:F0:78:8A:43:E6:96:36:5B:CA
    Issuer: Amazon Root CA 1

    Certificates are available for download here:
    https://clxgroup.sharepoint.com/:f:/s/EXTSinchSharing1/IgC-iGB_R7TkSJzUCFHnT7ulAcom1Bo2RLwLJm9XrAmregQ?e=HNH6tC (opens in new tab)

    For additional information or questions, please contact us via the Sinch Enterprise Support portal:
    https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181 (opens in new tab)

    Best regards,
    Sinch Contact Pro Team

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Cite this

Maintenance posted by Sinch, started 2026-10-08 09:43 UTC, not resolved, 1 update(s).

Title
Sinch Contact Pro Certificate renewal - CUSTOMER ACTION REQUIRED - EU
Vendor
Sinch
Date
URL
https://rewindex.com/company/sinch/incidents/m7ky6cf3twpm

Sinch profileRecent Sinch incidentsAll outages on October 8, 2026Sinch in October 2026MarkdownJSON