For problems after EM login or logout, the 12.5(1) Troubleshooting Guide says to check that the enterprise parameter Synchronization Between Auto Device Profile and Phone Configuration is True and that the phone is subscribed to the Extension Mobility service.

Checked 2026-10-02

Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
Extension Mobility
Deployment
on-premises
Region
not restricted
Release range
12.5(1)
Checked
2026-10-02

Sources

Cite this note

APA

WarmTransfer. (2026, October 2). Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-sync-auto-dp-param. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-sync-auto-dp-param

BibTeX

@misc{warmtransfer-claim-cucm-extension-mobility-troubleshooting-sync-auto-dp-param,
  title  = {Troubleshooting Extension Mobility login failures in Unified CM: source note cucm-extension-mobility-troubleshooting-sync-auto-dp-param},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-sync-auto-dp-param},
  note   = {Source note cucm-extension-mobility-troubleshooting-sync-auto-dp-param, checked 2026-10-02}
}

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