Take the Avaya course, its the best way to start. marketingtools.avaya.com/knowledgebase is helpful, but you will need an Avaya SSO login for the technical stuff. Also the Help button in Manager is a good tool.
And according to your posts in the Nortel forums, you say you dont know much about Nortel. This isn't a forum for free training.
I dont go to my car machanic and ask him how to make repairs to my car.