Cisco 642-414 : Communications Telephony Design Exam

  • Exam Code: 642-414
  • Exam Name: Communications Telephony Design Exam
  • Updated: Sep 22, 2026
  • Q & A: 96 Questions and Answers

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Cisco 642-414 Exam Syllabus Topics:

SectionObjectives
Cisco IP Telephony Architecture- Call processing design
  • 1. Clustering and redundancy design
    • 2. Cisco Unified Communications Manager (CUCM) architecture concepts
      - Dial plan design
      • 1. Numbering plans and route patterns
        • 2. Class of Service and call routing logic
          Network Services for Voice- Resiliency and survivability
          • 1. Failover and redundancy strategies
            • 2. SRST (Survivable Remote Site Telephony)
              - Quality of Service (QoS)
              • 1. Queuing and congestion management
                • 2. Traffic classification and marking (DSCP)
                  Scalability and Deployment Design- Large-scale voice deployments
                  • 1. Distributed call processing models
                    • 2. Bandwidth planning and site sizing
                      VoIP and Telephony Fundamentals- Voice over IP protocols and signaling
                      • 1. SIP, H.323, MGCP overview
                        • 2. Call setup and teardown flows
                          - Voice codecs and compression
                          • 1. G.711, G.729 and bandwidth considerations
                            • 2. QoS impact on voice quality
                              PSTN and Gateway Integration- PSTN connectivity design
                              • 1. PRI, SIP trunking, and analog integration
                                • 2. Call admission control concepts

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