L)ength of the "page" that RBBS-PC is to display on.   Typically this is
the number of lines of text to be displayed -- usually the number of lines
on the display that you are using minus two lines for the standard RBBS-PC
command prompt.  A caller can set the scroll page length with the "L"
command. The scroll page length is the number of lines that will be
displayed on you screen before halting. "L" is typically set at 23 lines
per page when you first log on.

You will be asked for the page length after you give the "L" command.  You
can produce a continuous scroll on your screen by entering a 0.  Then your
screen will not pause when it is full.
