A phone needs a dynamic IP address to use Device Mobility; if a phone with a static IP address roams, Unified CM keeps using the settings from its home location.

Checked 2026-09-25

The phone must have a dynamic IP address to use device mobility.
Vendor
Cisco
Product
Unified Communications Manager
Subsystem
device-mobility
Deployment
on-premises
Region
not restricted
Release range
14 and SUs; 15 and SUs
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM Device Mobility: source note cucm-device-mobility-dynamic-ip-required. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-device-mobility-dynamic-ip-required

BibTeX

@misc{warmtransfer-claim-cucm-device-mobility-dynamic-ip-required,
  title  = {Unified CM Device Mobility: source note cucm-device-mobility-dynamic-ip-required},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-device-mobility-dynamic-ip-required},
  note   = {Source note cucm-device-mobility-dynamic-ip-required, checked 2026-09-25}
}

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