IT Certification and Career Paths

642-437 CVOICE

Implementing Cisco Unified Communications Voice over IP and QoS v8.0

Exam Number 642-437 CVOICE
Associated Certifications CCNP Voice
Duration 90 minutes (60 - 70 questions)
Available Languages English, Japanese
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Exam Tutorial Review type of exam questions

The Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) 642-437 is the exam associated with the CCNP Voice certification. This exam tests a candidate's knowledge of how to implement and operate gateways, gatekeepers, Cisco Unified Border Element, Cisco Unified Communications Manager Express and QoS in a voice network architecture. Candidates can prepare for this exam by taking the CVOICE v8.0 Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) 642-437 course.

Exam Topics

The following topics are general guidelines for the content that is likely to be included on the practical exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the following guidelines may change at any time without notice. The exam is closed book and no outside reference materials are allowed.

  • 13%     1.0   Describe a dial plan

      • 1.1   Describe a numbering plan
      • 1.2   Describe digit manipulation
      • 1.3   Describe path selection
      • 1.4   Describe calling privileges
  • 16%     2.0   Describe the basic operation and
                components involved in a VoIP call

      • 2.1   Describe VoIP call flows
      • 2.2   Describe RTP, RTCP, cRTP, and sRTP
      • 2.3   Describe H.323
      • 2.4   Describe MGCP
      • 2.5   Describe Skinny Call Control Protocol
      • 2.6   Describe SIP
      • 2.7   Identify the appropriate gateway signaling
                protocol for a given scenario
      • 2.8   Choose the appropriate codec for a given scenario
      • 2.9   Describe and Configure VLANs
  • 11%     3.0   Implement Cisco Unified Communications
                Manager Express to support endpoints
                using CLI

      • 3.1   Describe the appropriate software components
                needed to support endpoints
      • 3.2   Configure DHCP, NTP and TFTP
      • 3.3   Describe the differences between the different
                types of ephones and ephone-dns
      • 3.4   Configure Cisco Unified Communications Manager
                Express endpoints
  •   9%     4.0   Describe the components of a gateway

      • 4.1   Describe the function of gateways
      • 4.2   Describe DSP functionality
      • 4.3   Describe the different types of voice ports and their usage
      • 4.4   Describe dial peers and the gateway call routing process
      • 4.5   Describe codecs and codec complexity
  • 13%     5.0   Implement a gateway

      • 5.1   Configure analog voice ports
      • 5.2   Configure digital voice ports
      • 5.3   Configure dial peers
      • 5.4   Configure digit manipulation
      • 5.5   Configure calling privileges
      • 5.6   Verify dial-plan implementation
      • 5.7   Implement fax support on a gateway
  •  9%     6.0   Implement Cisco Unified Border Element

      • 6.1   Describe the Cisco Unified Border Element features
                and functionality
      • 6.2   Configure Cisco Unified Border Element to provide
                address hiding
      • 6.3   Configure Cisco Unified Border Element to provide
                protocol and media interworking
      • 6.4   Configure Cisco Unified Border Element to provide
                call admission control
      • 6.5   Verify Cisco Unified Border Element configuration
                and operation
  • 11%     7.0   Describe the need to implement QoS
                for voice and video

      • 7.1   Describe causes of voice and video quality issues
      • 7.2   Describe how to resolve voice and video quality issues
      • 7.3   Describe QoS requirements for voice and video traffic
  • 18%     8.0   Implement a gateway

      • 8.1   Describe the DiffServ QoS model
      • 8.2   Describe marking based on CoS, DSCP,
                and IP Precedence
      • 8.3   Configure layer 2 to layer 3 QoS mapping
      • 8.4   Describe trust boundaries
      • 8.5   Configure trust boundary on Cisco switches
      • 8.6   Describe the operations of the QoS
                classifications and marking mechanisms
      • 8.7   Describe Low Latency Queueing
      • 8.8   Describe the operations of the QoS
                WAN Link Efficiency mechanisms
      • 8.9   Enable QoS mechanisms on switches using
      • 8.10   Configure lLow Latency Queueing
  • The following course is the recommended training for this exam.

    Courses listed are offered by Cisco Learning Partners-the only authorized source for Cisco IT training delivered exclusively by Certified Cisco Instructors. Check the List of Learning Partners for a Cisco Learning Partner nearest you

    A variety of Cisco Press titles may be available for this exam. These titles can be purchased through the Cisco Marketplace Bookstore, directly from Cisco Press.

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