For activation-code onboarding over MRA, the Cisco Manufacturing Root certificates must be in the Unified CM CallManager-trust store, and the OAuth Refresh Login Flow enterprise parameter must be Enabled.

Checked 2026-09-24

Cisco Manufacturing Root certificates must be present in the CallManager-trust store
Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
onboarding
Deployment
on-premises
Region
not restricted
Release range
X15.2 guide
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Expressway and Mobile and Remote Access: source note cucm-expressway-mra-activation-mfg-root. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-expressway-mra-activation-mfg-root

BibTeX

@misc{warmtransfer-claim-cucm-expressway-mra-activation-mfg-root,
  title  = {Expressway and Mobile and Remote Access: source note cucm-expressway-mra-activation-mfg-root},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-expressway-mra-activation-mfg-root},
  note   = {Source note cucm-expressway-mra-activation-mfg-root, checked 2026-09-24}
}

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