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