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

642-436 pass collection

Exam Code: 642-436

Exam Name: Cisco Voice over IP (CVOICE)

Updated: Aug 30, 2026

Q & A: 357 Questions and Answers

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Cisco 642-436 Exam Syllabus Topics:

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