INT 14 - MultiDOS Plus IODRV - INITIALIZE PORT
AH = 04h
Return: port initialized; if Hayes-compatible modem, a connection has been
established
Note:   the port number is stored at offset BEh in the Task Control Block
(see INT 15/AH=13h"MultiDOS")
SeeAlso: AH=05h"MultiDOS",AH=20h"MultiDOS",INT 15/AH=13h"MultiDOS"

See also: 1400

1404 - MultiDOS Plus IODRV - INITIALIZE PORT