This training was created for the IT staff of mobile/telecom providers, ITSPs (Internet Telephony Service Providers), Consultants, Call Centers or any other company using IP telephony. The performance of these professionals is essential to reduce the churn and the stress of the operation. SIP troubleshooting is a key skill in these scenarios.
It is a result of years in the frontlines of the tech support of a softs-switch developer, troubleshooting hundreds of deployments.
I have prepared two FREE gifts for this training. The first is a Virtual Machine in open virtualization format with a SIP server running as a Proxy, B2BUA and Redirect. The second is a list of SIP responses with comments on how to troubleshoot the most common SIP error messages. I sincerely hope you enjoy this training.
There are 5 practical labs to do with your VM and softphones in this training.
Content:
Section 1 - Introduction to SIP
SIP devices and architecture
SIP message components
SIP methods
SIP error messages
The Registration Server
Softphone Configuration
Capturing SIP packets in Wireshark
NAT Traversal
STUN Demo
TURN Demo
Section 2 - Handling and analyzing Media
Media Encoding
Session Description Protocol
Real Time Protocol and Real Time Control Protocol
Section 3 - Advanced SIP, transactions, dialogs and routing
SIP Transactions
SIP Dialogs
SIP Routing
Section 4 - Labs
Installing a SIP Proxy
Configuring Softphones
Capturing a SIP registration
Capturing a SIP Call
Using sngrep and its options
Section 5- Troubleshooting
Troubleshooting Methodology
Handling Signaling Issues
Handling Media Issues
Handling Billing Issues