Cisco Voice over IP (CVOICE) 642-436 Certified Exam Dumps

642-436 Exam Dumps

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Certification Provider: Cisco
Exam Code / Number: 642-436
Exam Name: Cisco Voice over IP (CVOICE)
Exam Questions: 357
Last Updated: Jun 07, 2026
Corresponding Certification: IP Communications

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Cisco 642-436 Exam Syllabus Topics:

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


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