When a phone roams into a different device mobility group, it uses the Calling Search Space, AAR Group and AAR CSS from its phone record rather than the roaming device pool, but it still takes the roaming-sensitive settings such as Location, Region and MRGL from the roaming pool.

Checked 2026-09-25

Vendor
Cisco
Product
Unified Communications Manager
Subsystem
device-mobility-group
Deployment
on-premises
Region
not restricted
Release range
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-different-dmg-home-css. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-device-mobility-different-dmg-home-css

BibTeX

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

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