Source note · DTMF methods and interoperability failures
Cisco documentation classifies RFC 2833 NTE as an in-band DTMF method because the events travel in the RTP stream.
disputed · Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Unified Border Element
- Subsystem
- terminology
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Status
- disputed
- 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, In-Band methods list (rtp-nte)
Cite this note
APA
WarmTransfer. (2026, September 24). DTMF methods and interoperability failures: source note dtmf-interop-nte-classed-inband-cisco. WarmTransfer. https://warmtransfer.net/knowledge/claims/dtmf-interop-nte-classed-inband-cisco
BibTeX
@misc{warmtransfer-claim-dtmf-interop-nte-classed-inband-cisco,
title = {DTMF methods and interoperability failures: source note dtmf-interop-nte-classed-inband-cisco},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/dtmf-interop-nte-classed-inband-cisco},
note = {Source note dtmf-interop-nte-classed-inband-cisco, checked 2026-09-24}
}