From Unified CM 12.5, the Extension Mobility service logs show the Multi Login Policy as multiOK, noLogin or autoLogout, and a blocked login shows the message Not allowed to log into multiple devices.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- Extension Mobility Cross Cluster
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 12.5 and later
- Checked
- 2026-10-02
Sources
- Extension Mobility and Extension Mobility Cross Cluster: Changes in CUCM 12.5 — Cisco · tier 2 current vendor documentation · Verify / log snippets
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-multi-login-log-vals. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-multi-login-log-vals
BibTeX
@misc{warmtransfer-claim-cucm-extension-mobility-troubleshooting-multi-login-log-vals,
title = {Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-multi-login-log-vals},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-multi-login-log-vals},
note = {Source note cucm-extension-mobility-troubleshooting-multi-login-log-vals, checked 2026-10-02}
}