Implementing Cisco Collaboration Devices (CICD, legacy) — Question 8

Which configuration causes PSTN users to experience a fail tone for every other call when trying to reach a particular number on Cisco Unified CME?

Answer options

• A. ephone-dn is not assigned to the ephone.
• B. Duplicate ephone-dn is not assigned to the ephone.
• C. ephone is not registered.
• D. ephone does not exist for the ephone-dn.

Correct answer: B

Explanation

The correct answer is B because having a duplicate ephone-dn that is not assigned can cause call routing issues, resulting in a fail tone. Option A is incorrect because if the ephone-dn is not assigned, it would not lead to alternate fail tones. Option C is also wrong as an unregistered ephone would not allow calls at all, and option D does not apply since the ephone-dn would not function if the ephone does not exist.