Service Issue in Platform for TLS SIP Voice calls.

Incident Report for Vonage API Status

Postmortem

Expired certificates affecting TLS SIP calls

Date/Time Impacted

First Occurrence: Mar 04, 2023, 00:00:00

Incident resolved: Mar 06, 2023, 07:52:00

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Services Impacted

TLS SIP calls

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Summary

Expiry of the *.vonage.com wildcard certificate caused TLS traffic for customers using vonage.com SIP domains (who also validate the expiry) to fail.

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Root Cause

There were gaps in the monitoring of the expiration of certificates.

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Restoration Actions

Certificates were manually renewed and fixed.

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Next Steps

We are implementing more monitoring and also automating the renewal certificates process.

Posted Mar 10, 2023 - 12:20 UTC

Resolved

Customers making outbound SIP TLS calls to vonage.com domains were likely to fail the validation, as our server certificates expired. Inbound calls were not affected.

Our engineers have renewed and applied the new certificates to our servers. Services are restored, and our team will continue monitoring the next hours.

Impact start date/time: 2023-03-04 00:00:00 UTC
Impact stop date/time: 2023-03-06 07:52:00 UTC

Posted Mar 06, 2023 - 08:09 UTC

Identified

Our engineers have identified that the TLS certificates on our servers have expired. They are now working to renew and apply the certificates.

We will post another update when the certificates have been renewed and services restored.

Posted Mar 06, 2023 - 07:10 UTC

Investigating

Our monitoring has alerted us to a potential service issue with our SIP platform.

We are alerting customers immediately while our engineering teams investigate.

We aim to provide an update on our investigation within 1 hour.

Please see this article - https://api.support.vonage.com/hc/en-us/articles/6749696044828-Vonage-API-Support-Incident-Handling - for an explanation of our approach to publishing incidents.

Posted Mar 06, 2023 - 06:39 UTC

This incident affected: Voice (Programmable SIP & SIP Interconnect, SIP Trunking).