Exam Code: 920-431
Exam Name: Comm Server 1000 Rls.5.0 Installation and Troubleshooting
Certification Provider: Nortel
Corresponding Certification: Nortel Other Certification

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Updated: Jul 25, 2026

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Nortel 920-431 Exam Overview:

Certification Vendor:	Nortel Networks
Exam Name:	Communication Server 1000 Rls.5.0 Installation and Troubleshooting
Exam Number:	920-431
Available Languages:	English
Certificate Validity Period:	2 years
Real Exam Qty:	60-72
Exam Price:	Approx. $125–$150 USD
Exam Format:	Multiple Choice
Exam Duration:	90 minutes
Related Certifications:	CS 1000 Rls.5.x Configuration and Networking (920-471)
Passing Score:	70%
Recommended Training:	Global Knowledge Nortel / Avaya Official Training
Exam Registration:	Prometric Registration
Sample Questions:	Nortel 920-431 Sample Questions
Exam Way:	Onsite at Prometric testing centers
Pre Condition:	Recommended: Basic knowledge of Nortel CS 1000, telephony systems, and IP networking; no mandatory prerequisite exam
Official Syllabus URL:	https://www.avaya.com/en/support/nortel-transition/

Nortel 920-431 Exam Syllabus Topics:

Section	Weight	Objectives
System Hardware & Architecture	25%	- Cabinet, shelf, and card installation - Network interfaces and cabling - CS 1000 hardware components and platforms - Power and grounding requirements
Software Installation & Initialization	25%	- Release 5.0 specific procedures - System initialization and configuration basics - Software upgrades and patches - Base software loading and activation
System Configuration	20%	- IP telephony and trunk configuration - Signaling and protocol setup - Terminal and user administration - Network integration parameters
Maintenance & Troubleshooting	30%	- Diagnostic tools and commands - Alarm and error log analysis - Common problem resolution - Call processing and connectivity issues - Hardware fault isolation and replacement

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