NAT or PAT between the phone and Unified CM can prevent Device Mobility from matching the phone's IP address to the correct subnet.

Checked 2026-09-24

Vendor
Cisco
Product
Unified Communications Manager
Subsystem
device mobility
Deployment
on-premises, dedicated-instance
Region
not restricted
Release range
15 and SUs
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Unified CM device pools and device configuration model: source note cucm-device-pools-dm-nat. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-device-pools-dm-nat

BibTeX

@misc{warmtransfer-claim-cucm-device-pools-dm-nat,
  title  = {Unified CM device pools and device configuration model: source note cucm-device-pools-dm-nat},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-device-pools-dm-nat},
  note   = {Source note cucm-device-pools-dm-nat, checked 2026-09-24}
}

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