CALL command vs. START with /WAIT option

Question

How is the START command with a WAIT option

START /wait notepad.exe 
START /wait  notepad.exe 

...any different from using a CALL command?

Answer 1

Call

Calls one batch program from another without stopping the parent batch program. The call command accepts labels as the target of the call. Call has no effect at the command-line when used outside of a script or batch file. https://technet.microsoft.com/en-us/library/bb490873.aspx

Start

Starts a separate Command Prompt window to run a specified program or command. Used without parameters, start opens a second command prompt window. https://technet.microsoft.com/en-us/library/bb491005.aspx