Cisco 642-436 : Cisco Voice over IP (CVOICE)

642-436 real exams

Exam Code: 642-436

Exam Name: Cisco Voice over IP (CVOICE)

Updated: Sep 11, 2026

Q & A: 357 Questions and Answers

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Cisco 642-436 Exam Syllabus Topics:

SectionObjectives
Topic 1: Voice Security and Troubleshooting- Operations and maintenance
  • 1. Voice network security concepts
  • 2. Performance monitoring
  • 3. Debug and verification commands
  • 4. Common VoIP troubleshooting techniques
Topic 2: Voice Gateways and Dial Plans- Gateway implementation
  • 1. Call routing
  • 2. Dial peers
  • 3. Cisco voice gateway configuration
  • 4. Digit manipulation
Topic 3: Quality of Service- QoS for voice traffic
  • 1. Classification and marking
  • 2. Congestion avoidance
  • 3. Queuing mechanisms
  • 4. End-to-end voice quality optimization
Topic 4: Media Resources- Voice media services
  • 1. Media termination functions
  • 2. Transcoding
  • 3. Conferencing
  • 4. DSP resources
Topic 5: Signaling Protocols- Call signaling technologies
  • 1. H.323 fundamentals
  • 2. SCCP operation
  • 3. SIP fundamentals
  • 4. MGCP concepts
Topic 6: Voice over IP Technologies- VoIP fundamentals
  • 1. Voice digitization and packetization
  • 2. Codecs and bandwidth calculations
  • 3. Delay, jitter, and packet loss
  • 4. Compare PSTN and VoIP architectures

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Cisco Related Exams

  • 642-415

    Unified Communications Architecture and Design

  • 642-436

    Cisco Voice over IP (CVOICE)

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