INT 2F C - PTS-DOS, S/DOS - RESERVED FOR BEEP                                   
	AX = 1271h
Return: ???
Note:	According to the Paragon Technology Systems S/DOS 1.0 sources,
	  which derived from PTS-DOS 6.51, this is reserved for a "BEEP"
	  function. However, S/DOS 1.0 does not handle this function by
	  itself.
SeeAlso: AX=1270h