Source note · Setting up CUBE as a Microsoft Teams Direct Routing SBC

On CUBE, TLS 1.2 can be enforced globally with 'transport tcp tls v1.2' (minimum form) under sip-ua, ciphers are listed in voice class tls-cipher and bound with a trustpoint in voice class tls-profile, and a voice class tenant can apply the tls-profile with 'session transport tcp tls' and 'listen-port secure'.

Checked 2026-09-30

Vendor: Cisco
Product: Cisco Unified Border Element
Subsystem: SIP TLS
Deployment: on-premises
Region: not restricted
Release range: IOS XE 17.6 onwards
Checked: 2026-09-30

Sources

Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - SIP TLS Support — Cisco · tier 2 current vendor documentation · TLS cipher, TLS profile and SIP-UA/tenant configuration sections

Cite this note

APA

WarmTransfer. (2026, September 30). Setting up CUBE as a Microsoft Teams Direct Routing SBC: source note cube-teams-direct-routing-setup-cube-tls-config. WarmTransfer. https://warmtransfer.net/knowledge/claims/cube-teams-direct-routing-setup-cube-tls-config

BibTeX

@misc{warmtransfer-claim-cube-teams-direct-routing-setup-cube-tls-config,
  title  = {Setting up CUBE as a Microsoft Teams Direct Routing SBC: source note cube-teams-direct-routing-setup-cube-tls-config},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cube-teams-direct-routing-setup-cube-tls-config},
  note   = {Source note cube-teams-direct-routing-setup-cube-tls-config, checked 2026-09-30}
}

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