Upcoming TLS Certificate renewals for SIP Trunking Signaling - US and EU regions
Our Telephony Engineers will perform maintenance on our inbound SIP proxy servers in the US ([sip.telnyx.com](http://sip.telnyx.com)) and Europe ([sip.telnyx.eu](http://sip.telnyx.eu)) regions. No disruption to calls or SIP signaling is expected during this maintenance. During this maintenance, our TLS certificate for each proxy server will be renewed; the four proxy servers will get the update on separate days. These important changes will happen. - We'll switch Certificate Authority from Digicert to LetsEncrypt (which means that the entire certificate chain will be changed). - The "clientAuth" EKU is being deprecated, which may affect customers who use mTLS (mutual TLS) for SIP signaling. This change may be important for any customer who has our old (current) TLS certificate or root-CA certificate (or chain) loaded into an SBC/appliance/phone. A notification was sent to customers earlier this year (21st July, subject "Action may be required: TLS certificate changes for Telnyx SIP pro
The latest update from Telnyx.
State
Scheduled
Started
5 d ago
2026-10-27 16:11 UTC
Ongoing for
5 days
Worst impact
Maintenance
Timeline
1 updateScheduled
5 days 100%
Updates
Times in UTCAs posted by Telnyx
Our Telephony Engineers will perform maintenance on our inbound SIP proxy servers in the US ([sip.telnyx.com](http://sip.telnyx.com)) and Europe ([sip.telnyx.eu](http://sip.telnyx.eu)) regions. No disruption to calls or SIP signaling is expected during this maintenance. During this maintenance, our TLS certificate for each proxy server will be renewed; the four proxy servers will get the update on separate days. These important changes will happen. - We'll switch Certificate Authority from Digicert to LetsEncrypt (which means that the entire certificate chain will be changed). - The "clientAuth" EKU is being deprecated, which may affect customers who use mTLS (mutual TLS) for SIP signaling. This change may be important for any customer who has our old (current) TLS certificate or root-CA certificate (or chain) loaded into an SBC/appliance/phone. A notification was sent to customers earlier this year (21st July, subject "Action may be required: TLS certificate changes for Telnyx SIP pro
Telnyx in the last 90 days
Full historyIncidents in 90 days
23
Days with an incident
18
Median duration
2 h 34 min
This incident
Not comparable
Other Telnyx incidents
All incidents
Telnyx·Messaging Webhook Delays
We believe the issue is now resolved

Telnyx·Delays with Messaging Webhooks, Mission Control Number and Porting ordering/configurations
Our team found the root cause of this issue to be due to a network blip leading to various service issues. It was confirmed to be brief and all services are now caught up as of 15:15UTC.

Telnyx·Telephony tokens 503s error
A rollback was applied at ~15:54 UTC and credential creation has been healthy since 15:58 UTC.

Telnyx·Unexpected wireless voice usage and charges
Resolved

Telnyx·Wireless session drops in DC2
NAT errors resulted in user-plane issues for some users.
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