INT 15h,  44h (68)       Activate/Deactivate Modem Power          Convertible

Activates or deactivates the PC Convertible internal modem.

On entry:      AH         44h
AL         Modem power state
00h - Turn internal modem power off
01h - Turn internal modem power on

Returns:       Carry      Set if error, else cleared
AL         0 if successful, else non-0

                                                                          

Notes:         This service is available only for the PC
Convertible.

If the internal modem power is turned on (AL = 01h),
it is initialized to the current settings found in
the modem profile. See Service 40h for more
information on the modem profile.

See also: INT 15h, 40h

INT 15h, 44h (68) Activate/Deactivate Modem Power Convertible