350-801 CLCOR: Implementing and Operating Cisco Collaboration Core TechnologiesDemo

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QuestionQ71

Media and QoS

A company deploys a centralized Cisco UCM architecture for a hub location and two remote sites.

  • The company has only one ITSP connection at the hub location, and the ITSP supports only G.711 calls.
  • Remote site A has a 1-Gbps fiber connection to the hub location, and calls to and from remote site A use the G.711 codec.
  • Remote site B has a 1-T1 connection to the hub location, and calls to and from remote site B use the G.729 codec.

Based on the provided guidance, which method must a Cisco voice engineer follow to design media resource management for the customer?

  • A configure the hardware transcoder on the site B router
  • B configure the hardware transcoder on the site A router
  • C configure the hardware transcoder on the hub location router
  • D configure the software transcoder on Cisco UCM to support voice calls to and from both remote sites
Explanation

A hardware transcoder at the hub converts G.729 media from remote site B to the G.711 media required by the ITSP while preserving G.729 across site B's bandwidth-constrained T1 link. A transcoder performs real-time codec conversion when call legs use incompatible codecs, including G.711-to-G.729 conversion; Cisco Unified CM manages these media resources.

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