Source note · Setting up CUBE for a carrier SIP trunk
Any call flow that switches from RTP to SRTP on the same SIP call leg requires the supplementary-service media-renegotiate command to ensure two-way audio.
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; SRTP-RTP interworking note
Cite this note
APA
WarmTransfer. (2026, September 25). Setting up CUBE for a carrier SIP trunk: source note cube-carrier-trunk-setup-srtp-media-renegotiate. WarmTransfer. https://warmtransfer.net/knowledge/claims/cube-carrier-trunk-setup-srtp-media-renegotiate
BibTeX
@misc{warmtransfer-claim-cube-carrier-trunk-setup-srtp-media-renegotiate,
title = {Setting up CUBE for a carrier SIP trunk: source note cube-carrier-trunk-setup-srtp-media-renegotiate},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cube-carrier-trunk-setup-srtp-media-renegotiate},
note = {Source note cube-carrier-trunk-setup-srtp-media-renegotiate, checked 2026-09-25}
}