Cisco 400-051 Exam

Refer to the exhibit. In an effort to troubleshoot a caller ID delivery problem, a customer emailed you the voice port configuration on a Cisco IOS router. Which type of voice port is it?

  • A. FXS
  • B. E&M
  • C. BRI
  • D. FXO
  • E. DID
Answer: Option D.

Configuring FXS and FXO Voice Ports to Support Caller ID
To configure caller-ID on FXS and FXO voice ports, use the following commands beginning in global configuration mode:Reference:

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