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Course Outline
Objectives:
- Explain call signaling and setup procedures in the voice network.
- Analyze the transport of voice media and the bandwidth requirements for VoIP calls.
- Outline SIP standards, services, messages, and return codes.
- Detail the fundamental process of call setup using SIP.
- Examine SIP flows and Session Description Protocol (SDP).
- Describe the registration process and making calls via a SIP Server.
- Explore IP PBX functionality and call conferencing.
- Explain SRV records and DNS mechanisms.
- Clarify URIs/URLs/URNs, ENUM, and NAPTR records.
- Describe the mapping of services to addresses.
- Outline SIP-T and SIP-I standards.
- Explain SIP early media and SIP trunks.
- Detail call flows between the PSTN and IP networks using SIP.
- Describe Secure SIP, Secure RTP, and Secure RTCP protocols.
- Review typical Secure SIP implementations.
Practical Exercises:
- Lab Exercise 1: Practical SIP deployment in the LAN with Xlite.
- Lab Exercise 2: Analyzing SIP packets using Wireshark.
- Lab Exercise 3: SDP, Presence, and Instant Messaging.
- Lab Exercise 4: Call flows with a SIP Server.
- Lab Exercise 5a: SIP Registration with DNS.
- Lab Exercise 5b: Call flows utilizing DNS.
- Lab Exercise 6: SIP Trunks.
- Lab Exercise 7: Security implementation with IPSec.
- Lab Exercise 8: Security implementation with Secure SIP.
Requirements
- Participants are expected to have a working knowledge of TCP/IP.
- A basic understanding of VoIP is beneficial but not mandatory.
21 Hours
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