QuestionQ499

On-Premises Call Control

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Refer to the exhibit. A user moves a phone from San Francisco to New York for a short reassignment. The phone was configured to use the San Francisco device pool, and device mobility is enabled on the Cisco UCM. The user places a call that matches a route pattern in a route list containing the Standard Local Route Group.

Where does the call route?

  • A The call egresses in San Francisco because the user uses device mobility and is allowed to roam while still keeping the number and resources assigned in San Francisco.
  • B The call egresses in New York because the device automatically is assigned a New York device pool and uses the local gateway.
  • C The call fails because device mobility is turned on, and the phone is not configured in New York. The engineer must configure which sites the device should be roaming to.
  • D The call fails because the Standard Local Route Group is being used only if no configuration is set for the device pools.
Explanation

Cisco Unified Communications Manager device mobility identifies a roaming phone’s physical location from its registered IP subnet and assigns the appropriate local device pool. The Standard Local Route Group resolves from that originating device pool’s local-route-group setting, so the phone roaming in New York uses the New York device pool and its local gateway.

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