/mcpTable 5: Device Mobility Scenarios System Response Scenario The system does not consider the phone to be roaming, and the system uses the settings in the home location device pool. The physical location setting in the phone device pool matches the physical location setting in a device pool that is associated with the matching subnet. Note Although the phone may have moved from one subnet to another, the physical location and associated services have not changed. The system considers the phone to be roaming. It reregisters with the parameters of the device pool for the matching subnet. The matching subnet has a single device pool that is assigned to it; the subnet device pool differs from the home location device pool, and the physical locations differ. The system considers the phone to be roaming. The new device pool gets assigned according to a round-robin rule. Each time that a roaming device comes in to be registered for the subnet, the next device pool in the set of available device pools gets assigned. The physical locations differ, and the matching subnet has multiple device pools assigned to it. The physical location has not changed, so the phone remains registered in the home device pool. Physical location gets defined for the home device pool but is not defined for the device pools that are associated with the matching subnet. The system considers the phone to be roaming to the defined physical location, and it registers with the parameters of the device pool for the matching subnet. Physical location that is not defined for the home device pool gets defined for the device pools that are associated with the matching subnet. The rules for roaming and assigning device pools get applied by using the remaining subnets. A subnet gets updated or removed. If no device mobility information entries match the device IP address, the device uses the home location device pool settings. Note Device Mobility Groups Operations Summary You can use device mobility groups to determine when a device moves to another location within a geographic entity, so a user can use its own dial plan. For example, you can configure a device mobility group for the United States and another group for the United Kingdom. If a phone moves into a different mobility group (such as from the United States to the United Kingdom), Unified Communications Manager uses the Calling Search Space, AAR Group and AAR CSS from the phone record, and not from the roaming location. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 46 Remote Worker Features Device Mobility Groups Operations Summary