There is a difference between disciplining and teaching/nurturing.... the expectations are different.
In the first scenario... it is 'expected' that the baby NOT do the 'wrong' behavior anymore. period.
In the second scenario... a baby is 'taught' boundaries... coaxed and nurtured in it... with the understanding that over time, AND age appropriately the baby will learn. Just not yet, and just not perfectly... everytime.
A baby does not have impulse control... nor the abstract reasoning, at this age, to simply "stop' and understand everything. But, over time, he/she will. A child does NOT have 'full' impulse control until about 3 years old... and even then, they will do things we don't want.
Kids will yell, tantrum, have melt-downs etc. no matter what age. BUT, as it is appropriate for their age and stage of development.... you instill boundaries in them.
Your baby is simply communicating. In the way that is for their age.
I suggest teaching him 'sign language'.... so that YOU and he can communicate and express himself in a way that is more palpable. And of course, allow for a learning curve...
Each child is different in temperament and personality. Some more strong willed than others. But at this age, yes they yell and cry. I really don't think, you should 'expect' him to just silence himself at will... or like a much older child.
Get a book...."what to expect the first year" by Arlene Eisenberg for example. Then, per each age stage... their behavior will make more sense to you... and bring on tips.
Good luck,
Susan