Source note · Troubleshooting Unified CM Smart Licensing
On an upgraded or migrated 15SU2+ cluster, if the connection to smartreceiver.cisco.com fails, Unified CM falls back to Call Home mode.
Checked 2026-10-01
In case of connection failure, Unified CM falls back to the Call Home mode.
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- smart-licensing-transport
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15SU2 and later (upgrade or migration path)
- Checked
- 2026-10-01
Sources
- Release Notes for Cisco Unified Communications Manager and the IM and Presence Service Release 15SU2 — Cisco Systems · tier 2 current vendor documentation · Smart Receiver Transport
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting Unified CM Smart Licensing: source note cucm-smart-licensing-troubleshooting-fallback-to-call-home. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-smart-licensing-troubleshooting-fallback-to-call-home
BibTeX
@misc{warmtransfer-claim-cucm-smart-licensing-troubleshooting-fallback-to-call-home,
title = {Troubleshooting Unified CM Smart Licensing: source note cucm-smart-licensing-troubleshooting-fallback-to-call-home},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-smart-licensing-troubleshooting-fallback-to-call-home},
note = {Source note cucm-smart-licensing-troubleshooting-fallback-to-call-home, checked 2026-10-01}
}