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

By Cisco · Question Mode

QuestionQ30

Media and QoS

A network administrator with ID0123456789 has determined that a WAN link between two Cisco UCM clusters provides only 1 Mbps of bandwidth for voice traffic.

How many calls can this link support when G.711 is used as the audio codec?

  • A 12
  • B 13
  • C 15
  • D 16
Explanation

A G.711 audio stream with 20-ms packetization consumes 80 kbps of bandwidth in Cisco Unified CM calculations. A 1-Mbps voice allocation therefore accommodates 12 whole calls: 12 × 80 kbps = 960 kbps, while 13 calls would require 1,040 kbps.

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