TLS certificates | May. 04, 2026
Update: Changes to Public Certificate Authority EKU for SIP over TLS
DigiCert, the Certificate Authority that issues the public TLS certificates Twilio uses, has pushed back the timeline for removing the Client Authentication Extended Key Usage (EKU) extension from their certificates to March 1, 2027. With the extended timeline, we're revisiting our response to this change.
We’ll share updates and any action required closer to the new timeline.
Need a hand?
Check out these resources:
Elastic SIP trunking
Developer Insights