Source note · SIP TLS handshake failures on trunks
From 1 June 2026, renewed certificates for Webex Calling Dedicated Instance UC applications are signed under IdenTrust Public Sector Root CA 1 instead of IdenTrust Commercial Root CA 1.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Webex Calling Dedicated Instance
- Subsystem
- certificate lifecycle
- Deployment
- dedicated-instance
- Region
- not restricted
- Release range
- certificate renewals from 2026-06-01
- Checked
- 2026-09-25
Sources
- Public CA certificate changes impacting Dedicated Instance — Cisco · tier 2 current vendor documentation · Root CA change section
Cite this note
APA
WarmTransfer. (2026, September 25). SIP TLS handshake failures on trunks: source note sip-tls-handshake-failures-di-root-switch. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-tls-handshake-failures-di-root-switch
BibTeX
@misc{warmtransfer-claim-sip-tls-handshake-failures-di-root-switch,
title = {SIP TLS handshake failures on trunks: source note sip-tls-handshake-failures-di-root-switch},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-tls-handshake-failures-di-root-switch},
note = {Source note sip-tls-handshake-failures-di-root-switch, checked 2026-09-25}
}