Device Pool Configuration Settings for Roaming in Cisco CCIE Collaboration Exam

Which Device Pool Configuration Settings Override Device-Level Settings in Roaming?

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Question

Which two Device Pool configuration settings will override the device-level settings when a device is roaming within or outside a device mobility group? (Choose two.)

Answers

Explanations

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A. B. C. D. E. F.

CF.

The parameters under these settings will override the device-level settings when the device is roaming within or outside a Device Mobility Group.

The parameters included in these settings are: "" Date/time Group "" Region "" Media Resource Group List "" Location "" Network Locale "" SRST Reference "" Physical Location "" Device Mobility Group The roaming sensitive settings primarily help in achieving proper call admission control and voice codec selection because the location and region configurations are used based on the device's roaming device pool.

References: http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/4x/42dvmobl.html.

Device Pools in Cisco Unified Communications Manager (CUCM) are used to group devices with similar characteristics and assign them common configuration settings such as time zone, region, location, and other device-specific settings. Device Mobility is a CUCM feature that allows IP phones and other endpoints to move within or between sites while maintaining their optimal configuration settings. When a device moves to a new location, it registers with the CUCM in that location and updates its configuration settings based on the Device Pool settings of the new location.

When a device roams within or outside a Device Mobility Group, the configuration settings of the Device Pool associated with the new location override the device-level settings. However, there are two Device Pool configuration settings that will override the device-level settings even if the device stays within the same Device Pool. These two settings are:

  1. Network Locale: Network Locale is a Device Pool configuration setting that defines the country and region for the device. It determines the tone used for dialing and other features such as date and time display. When a device moves to a new location, it updates its Network Locale setting based on the Device Pool settings of the new location. If the Network Locale setting in the new Device Pool is different from the device-level setting, the Device Pool setting will override the device-level setting.

  2. Called Party Transformation CSS: The Called Party Transformation Calling Search Space (CSS) is a Device Pool configuration setting that defines the CSS used for called party transformations such as translation patterns, route patterns, and SIP normalization scripts. When a device makes a call, it uses the Called Party Transformation CSS setting defined in its Device Pool. If the Called Party Transformation CSS setting in the new Device Pool is different from the device-level setting, the Device Pool setting will override the device-level setting.

Therefore, options C (Network Locale) and D (Called Party Transformation CSS) are the correct answers to this question. The other options (A, B, E, and F) are also Device Pool configuration settings but do not have the ability to override the device-level settings when a device is roaming within or outside a Device Mobility Group.