Like Dave said, you do not need all of the fancy equipment. Yes it makes it easier, but you do not need everything to start turning calls.
The best thing you can do is learn how to use your lathe, and I don't mean just turning something round. Read some books about woodturning. I think these 2 would be a good start.
Woodturning: A Foundation Course, by Keith Rowley.
Tauntons Complete Illustrated Guide To Turning by Richard Raffan
Get a load of cheap blank material, maple is a godd wood to learn with, 1.5 square blanks are reasonable from Bell Forest Products. Practice, then practice some more. And some more, practice sharpening your tools, and practice some more. Go to some of the woodturning forums and read about the turning experience. Learn to recognize the big name turners and then go to You Tube and watch some of their videos. The more you know about your tools and how to use them the easier callmaking will be.
Now preaching, there are 2 things about woodturning you NEED to know. One is NEED and the other is WANT, learn to distinguish between the 2, NEED is you have to have it to continue, a drill bit is a NEED, a 2 step modified drill bit that costs $100 is a WANT, you can do the job with out the $100 bit, but you have to have the basic drill bit. The more money you spend on WANTs the less money you will have to spend on NEEDs. If you know your tools, know the task at hand, then you will be able to know what you NEED. You may want a $8000 VB36 Lathe, but you don't need it, but if you don't know the tools how will you know if you NEED it or WANT it.
Marvin