Int 61 Fn 0003  - Banyan Vines - Async Terminal Emulation - "control Moni  [N]

   AX = 0003h subfn 02h
   DS:BX -> argument block (see below)

Return: AX = status (see AX=0003h/SF=00h)

See Also: AX=0003h/SF=03h,AX=0003h/SF=05h

Format of argument block:
Offset Size    Description
 00h   BYTE    session ID (00h)
 01h   BYTE    02h (function "control monitor")
 02h   BYTE    display flag
       00h don't display data received from host
       01h display data