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350-801 · Question #383

Location-based call admission control is used in Cisco UCM to control the amount of bandwidth allowed between predefined locations. What must be considered when calculating the number of calls that…

The correct answer is C. A limit of 900 kb is the total amount of bandwidth used for the sum of calls. The use of. When calculating the number of calls for location-based CAC, a bandwidth limit represents the total aggregate bandwidth used for the sum of all concurrent calls traversing the link between locations.

Media and QoS

Question

Location-based call admission control is used in Cisco UCM to control the amount of bandwidth allowed between predefined locations. What must be considered when calculating the number of calls that can be made?

Options

  • AA limit of 900 kb is the total amount of bandwidth used for the sum of the media and signaling in
  • BA limit of 900 kb Is the total amount of bandwidth used for the sum of calls of the defined codec
  • CA limit of 900 kb is the total amount of bandwidth used for the sum of calls. The use of
  • DA limit of 900 kb is the total amount of actual used RTP traffic so the oversubscription can be

How the community answered

(56 responses)
  • A
    5% (3)
  • B
    11% (6)
  • C
    82% (46)
  • D
    2% (1)

Why each option

When calculating the number of calls for location-based CAC, a bandwidth limit represents the total aggregate bandwidth used for the sum of all concurrent calls traversing the link between locations.

AA limit of 900 kb is the total amount of bandwidth used for the sum of the media and signaling in

Location-based CAC primarily controls media bandwidth; signaling bandwidth is generally insignificant and not typically included in the explicit CAC bandwidth calculations.

BA limit of 900 kb Is the total amount of bandwidth used for the sum of calls of the defined codec

The 900 kb limit represents the total aggregate bandwidth for all calls, which may use various codecs, not just for the sum of calls utilizing a single defined codec.

CA limit of 900 kb is the total amount of bandwidth used for the sum of calls. The use ofCorrect
DA limit of 900 kb is the total amount of actual used RTP traffic so the oversubscription can be

CAC calculations use the configured bandwidth for codecs (including overhead), which are estimations, rather than the fluctuating 'actual used RTP traffic,' to make admission decisions reliably.

Concept tested: Location-based CAC bandwidth calculation

Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab12/collab12/cac.html

Topics

#Location-based CAC#Cisco UCM#Bandwidth Management#Call Admission Control

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