Source note · DTMF methods and interoperability failures
On CUBE, sip-info DTMF handling is always enabled for SIP dial-peers and is invoked when a SIP INFO with DTMF relay content is received.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Unified Border Element
- Subsystem
- dtmf-relay
- Deployment
- on-premises
- Region
- not restricted
- Release range
- IOS XE 17.6 onwards
- Checked
- 2026-09-24
Sources
- Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - DTMF Relay — Cisco Systems · tier 2 current vendor documentation · DTMF Relay chapter, sip-info description
Cite this note
APA
WarmTransfer. (2026, September 24). DTMF methods and interoperability failures: source note dtmf-interop-cube-sip-info-always-on. WarmTransfer. https://warmtransfer.net/knowledge/claims/dtmf-interop-cube-sip-info-always-on
BibTeX
@misc{warmtransfer-claim-dtmf-interop-cube-sip-info-always-on,
title = {DTMF methods and interoperability failures: source note dtmf-interop-cube-sip-info-always-on},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/dtmf-interop-cube-sip-info-always-on},
note = {Source note dtmf-interop-cube-sip-info-always-on, checked 2026-09-24}
}