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The SpeakerPhoneSpecs entry defines the supported range of values for the speakerphone volume and gain.


One or more command strings, each consisting of four DWORDs.


HKR,, SpeakerPhoneSpecs,1, 00,00,00,00, 0f,00,00,00, 03,00,00,00, 00,00,00,00


The value corresponds to the following C structure:

typedef struct SPEAKERPHONE_SPEC {
    DWORD    SpeakerPhoneVolMax;
    DWORD    SpeakerPhoneVolMin;
    DWORD    SpeakerPhoneGainMax;
    DWORD    SpeakerPhoneGainMin;

The values used for the maximum volume and gain can be greater or less than the minimum. For example, a microphone's attenuation setting can have a maximum value that is numerically less that the minimum. The speakerphone volume and gain are set through the TAPI functions phoneSetVolume and phoneSetGain.



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