Source note · Setting up CUBE for a carrier SIP trunk
Cisco's CUBE hardening guide recommends disabling cleartext SIP transports (no transport udp, no transport tcp), enforcing TLS 1.2 as a minimum, and using SRTP.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Cisco Unified Border Element
- Subsystem
- security
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Cisco Guide to Harden Cisco Unified Border Element (CUBE) Enterprise Devices — Cisco Systems · tier 2 current vendor documentation · TLS and SRTP section
Cite this note
APA
WarmTransfer. (2026, September 25). Setting up CUBE for a carrier SIP trunk: source note cube-carrier-trunk-setup-harden-tls-srtp. WarmTransfer. https://warmtransfer.net/knowledge/claims/cube-carrier-trunk-setup-harden-tls-srtp
BibTeX
@misc{warmtransfer-claim-cube-carrier-trunk-setup-harden-tls-srtp,
title = {Setting up CUBE for a carrier SIP trunk: source note cube-carrier-trunk-setup-harden-tls-srtp},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cube-carrier-trunk-setup-harden-tls-srtp},
note = {Source note cube-carrier-trunk-setup-harden-tls-srtp, checked 2026-09-25}
}