TLS version 1.3 is not supported for the Webex Survivability Gateway operating mode.

Checked 2026-09-24

TLS version 1.3 security feature is not supported for Webex Survivability Gateway operating mode.
Vendor
Cisco
Product
Cisco Unified SRST on IOS XE
Subsystem
Survivability Gateway security
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Setting up site survivability for Webex Calling: source note survivability-gateway-setup-tls13-unsupported. WarmTransfer. https://warmtransfer.net/knowledge/claims/survivability-gateway-setup-tls13-unsupported

BibTeX

@misc{warmtransfer-claim-survivability-gateway-setup-tls13-unsupported,
  title  = {Setting up site survivability for Webex Calling: source note survivability-gateway-setup-tls13-unsupported},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/survivability-gateway-setup-tls13-unsupported},
  note   = {Source note survivability-gateway-setup-tls13-unsupported, checked 2026-09-24}
}

Read in context