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Device Mobility Configuration

The following steps describe how to configure Device Mobility:

  • Step 1 Configure physical locations.
  • Step 2 Configure Device Mobility Groups.
  • Step 3 Configure device pools.
  • Step 4 Configure DMIs (that is, IP subnets).
  • Step 5 Set the Device Mobility mode using the following:
    • A Cisco CallManager service parameter to set the default for all phones.
    • The Phone Configuration window for an individual configuration for each phone.

Steps 1 and 2: Configure Physical Locations and Device Mobility Groups

To configure physical locations and Device Mobility Groups, as shown in Figure 11-5, in CUCM choose System > Physical Location. For each physical location, a name and a description are configured. Device Mobility Groups are configured under System > Device Mobility > Device Mobility Group. For each Device Mobility Group, a name and description are configured.

Figure 11-5

Figure 11-5 Steps 1 and 2: Configure Physical Locations and Device Mobility Groups

Step 3: Configure Device Pools

To configure a device pool when Device Mobility is used, as shown in Figure 11-6, in CUCM choose System > Device Pool.

Figure 11-6

Figure 11-6 Step 3: Configure Device Pools

A device pool is configured with a name and a CUCM group. It includes roaming-sensitive settings and Device Mobility-related settings configured under Device Mobility Related Information. The physical location and the Device Mobility Group, both configured under Roaming Sensitive Settings, are used to decide what settings should be applied to a phone. The options are no settings, the roaming-sensitive settings only, or the roaming-sensitive settings and the Device Mobility-related settings. The physical location and the Device Mobility Group themselves are not applied to the configuration of a phone but are used only to control which settings to apply.

Step 4: Configure Device Mobility Infos

To configure a device pool when Device Mobility is used, as shown in Figure 11-7, in CUCM choose System > Device Mobility > Device Mobility Info. The DMIs are configured with a name, a subnet, and a subnet mask. Then they are associated with one or more device pools.

Figure 11-7

Figure 11-7 Step 4: Configure Device Mobility Infos

Step 5a: Set the Device Mobility Mode CCM Service Parameter

Device Mobility is off by default and can be configured per phone. The default for the Device Mobility mode, if it's not set differently at the phone, is set under System > Service Parameter, as shown in Figure 11-8. Choose the Cisco CallManager service, and set the Device Mobility Mode to On or Off. Note that Off is the default. The parameter is found in the Clusterwide Parameters (Device - Phone) section.

Figure 11-8

Figure 11-8 Step 5a: Set the Device Mobility Mode CCM Service Parameter

Step 5b: Set the Device Mobility Mode for Individual Phones

As shown in Figure 11-9, you set the Device Mobility mode per phone by choosing Device > Phone.

Figure 11-9

Figure 11-9 Step 5b: Set the Device Mobility Mode for Individual Phones

In the Phone Configuration window, you enable or disable Device Mobility for the phone by either setting the Device Mobility Mode to On or Off or leaving the default value Default. If the Device Mobility mode is set to Default, the Device Mobility mode is set at the Cisco CallManager service parameter.

Figure 11-9 also shows the configuration of the overlapping parameters, which are parameters that can be configured at both the phone and the device pool. The overlapping parameters for roaming-sensitive settings are Media Resource Group List, Location, and Network Locale. The overlapping parameters for the Device Mobility-related settings are Calling Search Space (called Device Mobility Calling Search Space at the device pool), AAR Group, and AAR Calling Search Space. Overlapping parameters configured at the phone have higher priority than settings at the home device pool and lower priority than settings at the roaming device pool.

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