Source note · SIP 488 and codec negotiation failures
CUBE SRTP-RTP interworking does not support GCM ciphers with RTP header extensions or more than one video m= line.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- CUBE
- Subsystem
- SRTP-RTP interworking
- Deployment
- on-premises
- Region
- not restricted
- Release range
- IOS XE 17.6 onwards
- Checked
- 2026-09-25
Sources
- Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - SRTP-RTP Internetworking — Cisco Systems · tier 2 current vendor documentation · SRTP-RTP Internetworking - Restrictions
Cite this note
APA
WarmTransfer. (2026, September 25). SIP 488 and codec negotiation failures: source note sip-488-codec-failures-cube-gcm-ext-header. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-488-codec-failures-cube-gcm-ext-header
BibTeX
@misc{warmtransfer-claim-sip-488-codec-failures-cube-gcm-ext-header,
title = {SIP 488 and codec negotiation failures: source note sip-488-codec-failures-cube-gcm-ext-header},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-488-codec-failures-cube-gcm-ext-header},
note = {Source note sip-488-codec-failures-cube-gcm-ext-header, checked 2026-09-25}
}