Summary

• 💻 Welcome to Alta3 Labs

AI LLM Toolkit

• 💻 Large Language Model toolkit for AI Solution Assistance

VOIP Fundamentals

• 💬 Introduction to VoIP

Packet Captures

• 💻 Upload PCAPs for analysis (OPTIONAL)

• 💻 Introduction to Wireshark

• 💻 Termshark

SIP Registrars

• 💬 SIP Architecture

• 💻 Successful REGISTER by a User Agent

• 💻 REGISTER Fails Auth

• 💻 deREGISTER Log Out

SIP INVITE

• 💬 Regular Expression

• 💻 Building a Dial Plan with RegEx

• 💬 Routing the INVITE

• 💻 The SIP INVITE

• 💻 SIP INVITE Packet Analysis with Wireshark

Establishing Calls

• 💬 SIP Dialog

• 💻 Troubleshooting Common SIP Failures with Wireshark

• 💬 SIP Entities

Call Flows

• 💬 Basic SIP Call Flows

• 💬 SIP 3xx Redirection

• 💻 Call Forwarding or 3xx responses

• 💬 SIP REFER

• 💻 SIP REFER for Call Transfer

• 💬 SIP PRACK 100rel

• 💻 SIP PRACK 100rel

• 💬 Call Forking

• 💻 Call Forking

SIP Proxies

• 💬 Call Routing

• 💻 INVITE Relay by SIP Proxies

• 💻 No Record Routes

• 💬 SIP URIs

• 💻 CANCELed SIP call

• 💻 Global Failures or 6xx responses

Supporting Systems

• 💬 SIP and the DNS

• 💬 ENUM

• 💬 Interop with the PSTN

SIP Tools

• 💻 Install Asterisk

• 💻 Linux Fundamentals

• 💻 Using vim

• 💻 Making pcaps with tcpdump

• 💻 Making pcaps with tshark

• 💬 SIPp

• 💻 SIPp SIP Tester

• 💻 SIP Swiss Army Knife

SIP Headers

• 💬 Common SIP Headers

Session Description Protocol

• 💬 Session Description Protocol

• 💻 Session Description Protocol

• 💻 SDP Video Call Setup

• 💻 SDP Video Call Setup Fails

Real-Time Transport Protocol

• 💬 Real-time Transport Protocol

• 💻 One-Way Media

Dual Tone Multi Frequency

• 💬 Transmitting DTMF

• 💻 Methods for Transport of DTMF

Fax

• 💬 Fax Handling

Presence

• 💬 Presence

• 💻 SIP PUBLISH

• 💻 Presence and IM Exchange

SIP Timers

• 💬 SIP Timers

SIP Security

• 💬 SIP Security

NAT Issues

• 💬 NAT

Optional Case Studies

• 💻 Avaya Aura Session Manager

• 💻 Building a Virtual Home Lab

Certification

• 💻 SIP Certification (OPTIONAL)

Continuing Education

• 💬 Planning & Consulting with Alta3 Research

Appendix

• 💬 Glossary

• 💬 Curriculum Path: Telecom