2.2.3.2.7 PHONEHOOKSWITCHMODE_Constants

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The PHONEHOOKSWITCHMODE_Constants are bit-flag constants that describe the microphone and speaker components of a hookswitch device.

Constant/value

Description

PHONEHOOKSWITCHMODE_ONHOOK

0x00000001

The device's microphone and speaker are both on the hook.

PHONEHOOKSWITCHMODE_MIC

0x00000002

The device's microphone is active; the speaker is mute.

PHONEHOOKSWITCHMODE_SPEAKER

0x00000004

The device's speaker is active; the microphone is mute.

PHONEHOOKSWITCHMODE_MICSPEAKER

0x00000008

The device's microphone and speaker are both active.

PHONEHOOKSWITCHMODE_UNKNOWN

0x00000010

The device's hookswitch mode is currently unknown.

These constants are used to provide an individual level of control over the microphone and speaker components of a phone device.