For EMCC problems, Cisco TAC asks for Cisco CallManager, Cisco Extension Mobility, Cisco Extension Mobility Application, Cisco TFTP and Cisco Trust Verification Service logs from all nodes of each cluster, plus user ID, phone MAC, phone IP and timestamp.

Checked 2026-10-02

Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
Extension Mobility Cross Cluster
Deployment
on-premises
Region
not restricted
Release range
not release-specific
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-emcc-logs-collect. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-extension-mobility-troubleshooting-emcc-logs-collect

BibTeX

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

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