Source note · Hold resume and conference signaling
The CUCM 12.0(1) SIP line messaging guide says a SIP phone hosting a locally mixed three-way call can drop out and connect the remaining two parties using REFER with an embedded Replaces.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- three-way calling
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 12.0(1); later releases unverified
- Checked
- 2026-09-24
Sources
- SIP Line Messaging Guide (Standard Edition) for Cisco Unified Communications Manager - SIP Standard Line Interface — Cisco Systems · tier 2 current vendor documentation · Section Three-Way Calling
Cite this note
APA
WarmTransfer. (2026, September 24). Hold resume and conference signaling: source note hold-resume-conference-cucm-line-3way-refer. WarmTransfer. https://warmtransfer.net/knowledge/claims/hold-resume-conference-cucm-line-3way-refer
BibTeX
@misc{warmtransfer-claim-hold-resume-conference-cucm-line-3way-refer,
title = {Hold resume and conference signaling: source note hold-resume-conference-cucm-line-3way-refer},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/hold-resume-conference-cucm-line-3way-refer},
note = {Source note hold-resume-conference-cucm-line-3way-refer, checked 2026-09-24}
}