Source note · Hold resume and conference signaling
RFC 4579 moves a point-to-point call into a conference by putting an escaped Replaces header in the Refer-To URI so that the focus's INVITE replaces the original dialog at the other party.
Checked 2026-09-24
- Vendor
- IETF
- Product
- SIP conferencing
- Subsystem
- escalation to conference
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 4579 (BCP 119)
- Checked
- 2026-09-24
Sources
- Session Initiation Protocol (SIP) Call Control - Conferencing for User Agents — IETF / RFC Editor · tier 1 standards and regulators · Section 5.10 Replaces Header Field: Transferring a Point-to-Point Session in to a Conference
Cite this note
APA
WarmTransfer. (2026, September 24). Hold resume and conference signaling: source note hold-resume-conference-4579-p2p-to-conf-replaces. WarmTransfer. https://warmtransfer.net/knowledge/claims/hold-resume-conference-4579-p2p-to-conf-replaces
BibTeX
@misc{warmtransfer-claim-hold-resume-conference-4579-p2p-to-conf-replaces,
title = {Hold resume and conference signaling: source note hold-resume-conference-4579-p2p-to-conf-replaces},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/hold-resume-conference-4579-p2p-to-conf-replaces},
note = {Source note hold-resume-conference-4579-p2p-to-conf-replaces, checked 2026-09-24}
}