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Course Outline
Objectives:
- Explain call signaling and setup processes in voice networks.
- Describe voice media transport and bandwidth requirements for VoIP calls.
- Outline SIP standards, services, messages, and return codes.
- Detail the basic call setup procedure using SIP.
- Explain SIP flows and Session Description Protocol (SDP).
- Describe the registration process and making calls via a SIP Server.
- Discuss IP PBX functionality and call conferencing.
- Explain SRV records and DNS.
- Clarify URI/URL/URN, ENUM, and NAPTR records.
- Describe the mapping of services to an address.
- Outline SIP-T and SIP-I.
- 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.
- Discuss typical Secure SIP implementation models.
Practical Exercises:
- Lab Exercise 1: Practical SIP in the LAN using Xlite.
- Lab Exercise 2: Examining SIP Packets with Wireshark.
- Lab Exercise 3: SDP, Presence, and IM.
- Lab Exercise 4: Call Flows with SIP Server.
- Lab Exercise 5a: SIP Registration with DNS.
- Lab Exercise 5b: Call Flows with DNS.
- Lab Exercise 6: SIP Trunks.
- Lab Exercise 7: Security with IPSec.
- Lab Exercise 8: Security with Secure SIP.
Requirements
- Delegates are expected to have a working knowledge of TCP/IP.
- A basic understanding of VoIP would be beneficial.
21 Hours
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