Upcoming SIP Trunking Signaling Maintenance - US Region
Scheduled Maintenance Report for Telnyx
The scheduled maintenance has been completed.
Posted May 09, 2024 - 11:59 UTC
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted May 09, 2024 - 09:00 UTC
Our Telephony Engineers will be performing maintenance on our SIP proxy servers. This maintenance will not disrupt service, but you may notice re-registration of your devices during the maintenance, as our primary and secondary SIP IP addresses are moved between hosts.

Note that our TLS certificate for our SIP proxy server sip.telnyx.com ( and will be changed during this deployment. This is important for some customers who use an SBC (or other appliance) and have our certificate loaded into the SBC. Note that the same certificate chain is being used with the new certificate, so this should affect only those customers who load our server certificate rather than the CA certificate into the SBC.

This information also applies to some customers who use TLS with desk phones (poly phones, for example) and who have our server certificate loaded into the phones.

The new certificate will have this serial number and issuer.
- Serial Number: 0f:df:b9:e8:7c:cb:01:ce:bb:d0:d7:aa:0b:7e:82:21
- Issuer: C = GB, ST = Greater Manchester, L = Salford, O = Sectigo Limited, CN = Sectigo RSA Domain Validation Secure Server CA

It's available for download from this (non-Telnyx) website: https://crt.sh/?d=12907534918. The intermediate certificate is not included here, but can be seen at sip.telnyx.com:5061 today. Note that the same intermediate certificate will be used with this renewal, so we expect that any customer/client who trusts the existing certificate will trust the new one, too (the exception is the use of SBCs or Polycom phones mentioned earlier).
Posted May 02, 2024 - 16:09 UTC
This scheduled maintenance affected: SIP Trunking - Signaling Regions (US).