210-060 Question #222: Real Exam Question with Answer & Explanation

The correct answer is C: ephone-dn. For shared extensions in Cisco Configuration Professional, both phones must share the same ephone-dn block and the same directory number so they ring simultaneously and maintain shared call state.

Question

When you configure a shared extension in Cisco Configuration Professional, which two characteristics should be the same on both phones, so that the phones can successfully use a shared extension? (Choose two.)

Options

Amonitor mode
BMAC address
Cephone-dn
Dnumber
Euser ID

Explanation

For shared extensions in Cisco Configuration Professional, both phones must share the same ephone-dn block and the same directory number so they ring simultaneously and maintain shared call state.

Common mistakes.

A. Monitor mode is a busy lamp field feature used to observe the state of another extension and is not a configuration requirement for establishing a shared line.
B. MAC addresses are globally unique hardware identifiers assigned to individual phones and cannot be the same on two separate devices.
E. User ID is an optional end-user association field in CUCM and is not evaluated by the shared-line mechanism when determining whether two phones share an extension.

Concept tested. Cisco CCP shared extension configuration requirements

Reference. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/admin/configuration/guide/cmeadm.html

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