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CHAPTER19
Cisco CallManager Device Mobility
The Device Mobility feature permits devices to dynamically associate with
Cisco CallManager for location based information.
This chapter provides an overview of the Device Mobility feature and includes
information on the following topics:
• Introducing Device Mobility, page 19-2
� System Requirements for Cisco CallManager Device Mobility, page 19-8
� Interactions and Restrictions, page 19-9
� Configuration Checklist for Device Mobility, page 19-9
�
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Chapter 19 Cisco CallManager Device Mobility Introducing Device Mobility Introducing Device Mobility Cisco CallManager uses IP subnets and device pools that contain location information to determine a device home location. By linking IP subnets to locations, the system can determine whether a device is at its home location or a remote location and register the device accordingly. To support device mobility, modifications to the device pool structure separate the user information from
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Chapter 19 Cisco CallManager Device Mobility Introducing Device Mobility � Network Locale � Device Mobility Group � Location � Physical Location � Connection Monitor Duration � Device Mobility Calling Search Space � AAR Calling Search Space � AAR Group The Common Profile window now contains these parameters that were formerly included in the device pool: � Common Profile Settings – Common Profile Name – Softkey Template – Network Hold MOH Audio Source – User Hold MOH Audio Source
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Chapter 19 Cisco CallManager Device Mobility Introducing Device Mobility Device Mobility Design To design an efficient device mobility structure, you must first determine how to divide the network into hierarchical groupings with distinct device mobility properties and make the proper associations among the groupings. This is done using device mobility groups, physical locations, device pools, and subnet-based device mobility information. Device Mobility Groups Device mobility groups
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Chapter 19 Cisco CallManager Device Mobility Introducing Device Mobility Device Pools After the device mobility groups and physical locations are identified, you can associate them with device pools. Each device pool contains the set of parameters that apply to devices, and adding the device mobility group and physical location ties the device pool to those entities. Device Mobility Information In the final step in designing a device mobility structure, you associate subnets with the
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Chapter 19 Cisco CallManager Device Mobility Introducing Device Mobility 3. If the device pool in the phone record matches the device pool in the matching subnet, the system considers the phone to be in its home location, and the phone retains the parameters of its home device pool. 4. If the device pool in the phone record does not match the device pools in the matching subnet, the system considers the phone to be roaming and subject to reregistration and reapplication of device para
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Chapter 19 Cisco CallManager Device Mobility Introducing Device Mobility Table 19-1 Device Mobility Conditions and Responses (continued) Condition System Response Physical location that is not defined for the The system considers the phone to home device pool gets defined for the be roaming to the defined physical device pools that are associated with the location, and it registers with the matching subnet parameters of the device pool for the matching subnet. A subnet gets updated or
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Chapter 19 Cisco CallManager Device Mobility System Requirements for Cisco CallManager Device Mobility Table 19-2 Device Mobility Group Conditions and Responses (continued) Condition System Response A device roams and reregisters The phone gets assigned the device pool with a different device pool and settings of the roaming device pool; physical location in a different however, these device mobility parameters device mobility group. retain the values that are specified in the device
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Chapter 19 Cisco CallManager Device Mobility Interactions and Restrictions � Cisco IP Communicator Interactions and Restrictions The Device Mobility feature depends on the IP address of the device that registers with Cisco CallManager. If the device is assigned an IP address by using NAT/PAT, the IP address that is provided during registration may not match the actual IP address of the device. If Device Mobility Mode is set to Default in the IP Phone Configuration window, the Device M
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Chapter 19 Cisco CallManager Device Mobility Where to Find More Information Figure 19-1 Cisco CallManager Device Mobility Checklist (continued) Configuration Steps Related Procedures and Topics Step 5 Turn the mobility mode to on for devices Cisco IP Phone Configuration, Cisco that will be permitted to roam. CallManager Administration Guide Step 6 Configure phones to use device mobility. Cisco IP Phone Configuration, Cisco CallManager Administration Guide Where to Find More Information
