Cisco Gateway Gatekeeper Exam (GWGK) : 642-453

  • Exam Code: 642-453
  • Exam Name: Gateway Gatekeeper Exam (GWGK)
  • Updated: Sep 09, 2026
  • Q & A: 105 Questions and Answers

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Cisco 642-453 Exam Syllabus Topics:

SectionObjectives
Topic 1: Overview of Gateways and Gatekeepers- Gateway Functions
  • 1. Role and Interoperation of Voice & Video Gateways
  • 2. Appropriate Gateway Signalling Protocol Selection (H.323, MGCP)
- Gatekeeper Concepts
  • 1. Dynamic Zone Prefix Registration and Clustering
  • 2. Gatekeeper Functions and Architecture
Topic 2: Gateway Implementation and Dial-Plan- Dial-Plan and Call Routing
  • 1. Class of Restriction (COR) and Dial-Peer Matching
  • 2. Digit Manipulation and Call Routing
- Gateway Connectivity & Services
  • 1. PRI/BRI/CAS/Analog Interface Configuration
  • 2. SRST and High Availability
Topic 3: Configuring and Implementing Gatekeepers- Redundancy & Scalability
  • 1. Directory Gatekeeper Configuration
  • 2. Redundancy Between Gatekeeper Devices
- Gatekeeper Call Control
  • 1. Dial-Plan Resolution
  • 2. Call Admission Control Implementation

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