In Unified CM 15, a phone that resets instead of just restarting after Extension Mobility login or logout is expected when the user profile locale differs from the phone locale, and no action is required.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- Extension Mobility
- 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 — Cisco Systems · tier 2 current vendor documentation · Troubleshooting Extension Mobility > Phone Resets
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-phone-resets-locale. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-phone-resets-locale
BibTeX
@misc{warmtransfer-claim-cucm-extension-mobility-troubleshooting-phone-resets-locale,
title = {Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-phone-resets-locale},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-phone-resets-locale},
note = {Source note cucm-extension-mobility-troubleshooting-phone-resets-locale, checked 2026-10-02}
}