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Nortel 920-803 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Media Transport and Codecs | - Audio codecs (G.711, G.729, etc.) - RTP/RTCP protocols |
| IP Telephony Fundamentals | - Packet-based voice transmission principles - Voice over IP (VoIP) concepts |
| Signaling Protocols | - H.323 architecture and call control - SIP (Session Initiation Protocol) |
| Quality of Service (QoS) | - Traffic prioritization mechanisms - Latency, jitter, and packet loss management |
| Network Security for IP Telephony | - Encryption and secure signaling considerations - Firewall and NAT traversal for VoIP |
| Nortel IP Telephony Architecture | - Nortel CS 1000 / enterprise voice systems - Call routing and session management |
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