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AH = 18h
AL = function
00h get mute state
01h set mute state
02h get key click state
03h set key click state
04h get beep state
05h set beep state
06h get alarm state
07h set alarm state
08h get DTMF duration
09h set DTMF duration
DL = new state ("set" functions) (00h off [muted], 01h on)
Return:
DL = current state ("get" functions) (00h off [muted], 01h on)
See Also: AH=15h"Portfolio" - AH=16h"Portfolio" - AH=17h"Portfolio"
See Also: AH=19h"Portfolio"
Category: Vendor-specific BIOS Extensions - Int 61h - A
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