Cisco Unified Communication for System Engineers : 642-104

  • Exam Code: 642-104
  • Exam Name: Unified Communication for System Engineers Exam
  • Updated: Aug 21, 2026     Q & A: 70 Questions and Answers

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Cisco 642-104 Exam Syllabus Topics:

SectionObjectives
Cisco Unified Communications Manager (CUCM)- CUCM configuration and administration
  • 1. User and endpoint management
    • 2. Device configuration (phones, gateways, trunks)
      Call Control and Dial Plan- Dial plan design and implementation
      • 1. Numbering plans and call routing logic
        • 2. Route patterns and translation patterns
          Voice Gateway and PSTN Integration- Gateway configuration and protocols
          • 1. PSTN connectivity and call routing
            • 2. SIP, H.323, MGCP concepts
              Messaging and Collaboration Services- Voicemail and unified messaging
              • 1. Cisco Unity Connection integration
                • 2. Call forwarding and voicemail routing
                  Quality of Service (QoS) for Voice- QoS mechanisms and design
                  • 1. Traffic classification and prioritization
                    • 2. Latency, jitter, and packet loss handling
                      Troubleshooting and Maintenance- UC system troubleshooting
                      • 1. Device registration and signaling issues
                        • 2. Call failure analysis
                          Cisco Unified Communications Architecture- UC architecture components and design principles
                          • 1. IP telephony architecture models
                            • 2. Unified Communications Manager (CUCM) overview

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