The Local Gateway guide's dial peers toward Unified CM set dtmf-relay rtp-nte, which declares RFC 2833 RTP-NTE as the expected DTMF method on that leg.

Checked 2026-09-24

Vendor
Cisco
Product
Cisco Unified Border Element
Subsystem
dial peers
Deployment
on-premises, hybrid
Region
not restricted
Release range
current as of 2026-09-24
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Unified CM SIP trunk to CUBE configuration: source note cucm-config-sip-trunk-to-cube-cube-dtmf-rtp-nte. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-config-sip-trunk-to-cube-cube-dtmf-rtp-nte

BibTeX

@misc{warmtransfer-claim-cucm-config-sip-trunk-to-cube-cube-dtmf-rtp-nte,
  title  = {Unified CM SIP trunk to CUBE configuration: source note cucm-config-sip-trunk-to-cube-cube-dtmf-rtp-nte},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-config-sip-trunk-to-cube-cube-dtmf-rtp-nte},
  note   = {Source note cucm-config-sip-trunk-to-cube-cube-dtmf-rtp-nte, checked 2026-09-24}
}

Read in context