Optional. Comma-delimited list of variables, arrays, or expressions to pass to the procedure. Components of argumentlist may include the keywords ByVal or ByRef to describe how the arguments are treated by the called procedure. However, ByVal and ByRef can be used with Call only when calling a DLL procedure.
Remarks
You are not required to use the Call keyword when calling a procedureIf you use the Call statement to call any intrinsic, .dll or user-defined function, the function's return value is discarded.
To pass a whole array to a procedure, use the array name followed by empty parentheses.