In Unified CM 15, if the EM service on one cluster gets no reply from a remote cluster within the update interval, Remote Activated is set to False and visiting phones may fail with Login is unavailable.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- Extension Mobility Cross Cluster
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15 and SUs
- Checked
- 2026-10-02
Sources
- Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Extension Mobility Cross Cluster — Cisco Systems · tier 2 current vendor documentation · Extension Mobility Cross Cluster Restrictions (Remote Activated)
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-emcc-remote-inactive. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-emcc-remote-inactive
BibTeX
@misc{warmtransfer-claim-cucm-extension-mobility-troubleshooting-emcc-remote-inactive,
title = {Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-emcc-remote-inactive},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-emcc-remote-inactive},
note = {Source note cucm-extension-mobility-troubleshooting-emcc-remote-inactive, checked 2026-10-02}
}