Source note · Setting up CUBE for a carrier SIP trunk

SRTP is enabled on a dial-peer with srtp (optionally srtp fallback), and cipher-suite preference is set with voice class srtp-crypto tag containing crypto 1-4 entries, applied with voice-class sip srtp-crypto tag.

Checked 2026-09-25

Vendor: Cisco
Product: Cisco Unified Border Element
Subsystem: SRTP
Deployment: on-premises
Region: not restricted
Release range: Cisco IOS XE 17.6 onwards
Checked: 2026-09-25

Sources

Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - SRTP-SRTP Interworking — Cisco Systems · tier 2 current vendor documentation · SRTP-SRTP Interworking; dial-peer configuration and cipher suite preference

Cite this note

APA

WarmTransfer. (2026, September 25). Setting up CUBE for a carrier SIP trunk: source note cube-carrier-trunk-setup-srtp-dial-peer. WarmTransfer. https://warmtransfer.net/knowledge/claims/cube-carrier-trunk-setup-srtp-dial-peer

BibTeX

@misc{warmtransfer-claim-cube-carrier-trunk-setup-srtp-dial-peer,
  title  = {Setting up CUBE for a carrier SIP trunk: source note cube-carrier-trunk-setup-srtp-dial-peer},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cube-carrier-trunk-setup-srtp-dial-peer},
  note   = {Source note cube-carrier-trunk-setup-srtp-dial-peer, checked 2026-09-25}
}

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