On CUBE, the dtmf-relay keyword rtp-nte selects RFC 2833 RTP Named Telephone Events, which CUBE classes as an in-band method.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco Unified Border Element
- Subsystem
- DTMF relay
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Cisco IOS XE 17.6 onwards
- Checked
- 2026-10-02
Sources
- Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - DTMF Relay — Cisco Systems · tier 2 current vendor documentation · chapter 'DTMF Relay', list of in-band DTMF relay methods
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting DTMF digits not detected in Webex Contact Center flows: source note wxcc-dtmf-troubleshooting-rtp-nte-is-rfc2833. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxcc-dtmf-troubleshooting-rtp-nte-is-rfc2833
BibTeX
@misc{warmtransfer-claim-wxcc-dtmf-troubleshooting-rtp-nte-is-rfc2833,
title = {Troubleshooting DTMF digits not detected in Webex Contact Center flows: source note wxcc-dtmf-troubleshooting-rtp-nte-is-rfc2833},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/wxcc-dtmf-troubleshooting-rtp-nte-is-rfc2833},
note = {Source note wxcc-dtmf-troubleshooting-rtp-nte-is-rfc2833, checked 2026-10-02}
}