Cisco 400-051 Exam

Refer to the exhibit. Which three options are potential reasons the FXO port is not receiving Caller ID? (Choose three.)

  • A. “Enable Caller ID” was not configured on the Cisco Unified Communications Manager configuration.
  • B. The FXO port was configured to “loop-start” instead of “ground-start”.
  • C. The Timing Guard-out parameter is incorrectly set to 1500 ms.
  • D. “Connection polar opx immediate” was used and does support caller ID.
  • E. Gateway with IOS 12.4(24T) was used and does not support this feature.
  • F. The NTFY message contains a Hung Up parameter.
Answer: Option A. C. E.
Explanation: 

No answer description available for this question

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