Source note · SIP TLS handshake failures on trunks

On CUBE, 'show sip-ua connections tcp tls detail' shows each SIP TLS connection's negotiated TLS version, cipher, key type and curve, and 'clear sip-ua tcp tls connection' takes an id or target to tear one down.

Checked 2026-09-25

Vendor: Cisco
Product: Cisco Unified Border Element (IOS XE)
Subsystem: diagnostics
Deployment: on-premises
Region: not restricted
Release range: IOS XE 17.6 onwards; field set may vary by release
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 · Verify SIP TLS Configuration

Cite this note

APA

WarmTransfer. (2026, September 25). SIP TLS handshake failures on trunks: source note sip-tls-handshake-failures-cube-show-tls-detail. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-tls-handshake-failures-cube-show-tls-detail

BibTeX

@misc{warmtransfer-claim-sip-tls-handshake-failures-cube-show-tls-detail,
  title  = {SIP TLS handshake failures on trunks: source note sip-tls-handshake-failures-cube-show-tls-detail},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/sip-tls-handshake-failures-cube-show-tls-detail},
  note   = {Source note sip-tls-handshake-failures-cube-show-tls-detail, checked 2026-09-25}
}

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