Unified CM 12.5 added Multiple Login Behavior control for EMCC; before 12.5, multiple EMCC logins were always allowed and administrators could not control it.
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 · Introduction / Main Service Parameter change
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-emcc-multi-login-125. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-emcc-multi-login-125
BibTeX
@misc{warmtransfer-claim-cucm-extension-mobility-troubleshooting-emcc-multi-login-125,
title = {Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-emcc-multi-login-125},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-emcc-multi-login-125},
note = {Source note cucm-extension-mobility-troubleshooting-emcc-multi-login-125, checked 2026-10-02}
}