I know this is an old post, but I just completed my SSCA SIP training. I thought it was very good. There was a lot of useful information in the class and I learned several new things. I think it was about 10 hours of instruction followed by the test. The course was very informative and the test was changeling. I also took the Networking 4 VVoIP training also offered by the SIP school. I started the first section and thought to myself this is too easy and just took the test. Passed with a 95%. Anyway, I recommend the SSCA SIP training for anyone that wants to learn more about SIP.