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Exams210-060Questions#102
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210-060 · Question #102

210-060 Question #102: Real Exam Question with Answer & Explanation

The correct answer is C: Test the call using Dialed Number Analyzer in Cisco Unified Communications Manager. When PSTN calls fail from an IP phone, verifying the calling search space and using Dialed Number Analyzer are the correct first steps to identify routing and permission issues in CUCM.

Question

An engineer receives an isolated report that the customer can make calls successfully from an IP phone to other IP phones, but receives an error recording when attempting to call someone over the PSTN. The user cannot recall the error recording to provide the specific error message. Which two steps should the network engineer take to begin troubleshooting? (Choose two.)

Options

  • AEnable debug isdn q931 on the gateway and have user make the same call from the IP phone to
  • BCheck the region used by the IP phone in Cisco Unified Communications Manager.
  • CTest the call using Dialed Number Analyzer in Cisco Unified Communications Manager
  • DCheck the calling search space used by the line on the IP phone in Cisco Unified
  • ECheck the gateway to determine which codec is being used by the appropriate dial peer.

Explanation

When PSTN calls fail from an IP phone, verifying the calling search space and using Dialed Number Analyzer are the correct first steps to identify routing and permission issues in CUCM.

Common mistakes.

  • A. Enabling debug isdn q931 requires reproducing the call at the gateway and is appropriate only after CUCM routing has been confirmed correct, making it a later-stage step.
  • B. Regions control audio codec and bandwidth between devices and are not a factor in whether calls can be routed to the PSTN.
  • E. Codec selection by a dial peer is a media negotiation concern and would not cause the call to fail before reaching the gateway.

Concept tested. CUCM calling search space and Dialed Number Analyzer for PSTN troubleshooting

Reference. https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/213349-understand-calling-search-spaces-and-par.html

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