Exam Code: 920-803
Exam Name: Nortel technology standards and protocol for ip telephony solutions
Certification Provider: Nortel
Corresponding Certification: NCSS

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Updated: Sep 07, 2026

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Nortel 920-803 Exam Overview:

Certification Vendor:	Nortel
Exam Name:	Technology Standards and Protocol for IP Telephony Solutions
Exam Number:	920-803
Available Languages:	English
Exam Duration:	120 minutes
Passing Score:	60%-70%
Exam Price:	Not officially published; historical estimate ~$125 USD
Certificate Validity Period:	Retired / No longer maintained
Real Exam Qty:	55-67
Exam Format:	Multiple Choice, Drag-and-Drop, Scenario-based
Related Certifications:	Nortel Certified Support Specialist Nortel Certified Technology Specialist
Sample Questions:	Nortel 920-803 Sample Questions
Exam Way:	Computer-based testing at authorized test centers; online proctoring historically available
Pre Condition:	No mandatory prerequisites; recommended knowledge of IP networking and basic telephony

Nortel 920-803 Exam Syllabus Topics:

Section	Weight	Objectives
Nortel IP Telephony Implementation & Troubleshooting	15%	- Common deployment scenarios - Protocol analysis and fault isolation - Succession and CS1000 architecture
IP Telephony Fundamentals	20%	- Circuit vs packet switching - VoIP architecture and concepts - Packet voice transmission basics
Industry Standards & Interoperability	15%	- Codecs and compression algorithms - ITU-T, IETF, and ETSI standards - Security and encryption basics
Signaling & Call Control Protocols	30%	- Media Gateway Control Protocol (MGCP) - Session Initiation Protocol (SIP) - H.323 protocol suite - Real-time Transport Protocol (RTP/RTCP)
Quality of Service (QoS) & Network Requirements	20%	- DiffServ, IntServ, and RSVP - Latency, jitter, and packet loss - Bandwidth calculation and design

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