WebRTC endpoints must implement audio/telephone-event (RFC 4733) and be able to generate and consume DTMF events 0-9, *, # and A-D.

Checked 2026-09-24

Vendor
IETF
Product
WebRTC protocol suite
Subsystem
dtmf
Deployment
any
Region
not restricted
Release range
RFC 7874
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). WebRTC in modern contact centers: source note webrtc-deployment-telephone-event-mti. WarmTransfer. https://warmtransfer.net/knowledge/claims/webrtc-deployment-telephone-event-mti

BibTeX

@misc{warmtransfer-claim-webrtc-deployment-telephone-event-mti,
  title  = {WebRTC in modern contact centers: source note webrtc-deployment-telephone-event-mti},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/webrtc-deployment-telephone-event-mti},
  note   = {Source note webrtc-deployment-telephone-event-mti, checked 2026-09-24}
}

Read in context