Source note · Connecting Unified CM to Genesys Cloud CX

CUBE added TLS 1.3 and a TLS 1.2 minimum option in IOS XE 17.14.1a, configured with sip-ua transport tcp tls. From IOS XE 26.1.1, TLS 1.0 and 1.1 are not allowed in the default configuration.

Checked 2026-09-25

Vendor: Cisco
Product: Cisco Unified Border Element
Subsystem: SIP TLS
Deployment: on-premises
Region: not restricted
Release range: IOS XE 17.14.1a and later
Checked: 2026-09-25

Sources

Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - SIP TLS Support — Cisco · tier 2 current vendor documentation · TLS versions supported; global sip-ua configuration

Cite this note

APA

WarmTransfer. (2026, September 25). Connecting Unified CM to Genesys Cloud CX: source note cucm-with-genesys-cloud-cube-tls-versions. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-with-genesys-cloud-cube-tls-versions

BibTeX

@misc{warmtransfer-claim-cucm-with-genesys-cloud-cube-tls-versions,
  title  = {Connecting Unified CM to Genesys Cloud CX: source note cucm-with-genesys-cloud-cube-tls-versions},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-with-genesys-cloud-cube-tls-versions},
  note   = {Source note cucm-with-genesys-cloud-cube-tls-versions, checked 2026-09-25}
}

Read in context