Unified CM accepts incoming out-of-dialog REFER requests on a SIP trunk only when Accept Out-of-Dialog REFER is checked in the trunk's security profile.

Checked 2026-09-24

Vendor
Cisco
Product
Unified Communications Manager
Subsystem
SIP trunk security profile
Deployment
on-premises
Region
not restricted
Release range
Release 15 and SUs
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-accept-ood-refer. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-accept-ood-refer

BibTeX

@misc{warmtransfer-claim-cucm-sip-trunks-accept-ood-refer,
  title  = {Unified CM SIP trunks and security profiles: source note cucm-sip-trunks-accept-ood-refer},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-sip-trunks-accept-ood-refer},
  note   = {Source note cucm-sip-trunks-accept-ood-refer, checked 2026-09-24}
}

Read in context