The DtmfDecoderSetMinimumDigitOnTime API procedure can be called by application software to specify the minimum digit ON time for a detected DTMF digit.

Minimum digit ON time is generally set to 40Ms in order to comply with standard in-band DTMF requirements. However, for noisy DTMF signals, specifying a larger DTMF ON time improves noise immunity, improves "talk off" performance and reduces false DTMF digit detections (false positives).

Namespace:  LanScape
Assembly:  LMEVoipManaged (in LMEVoipManaged.dll) Version: 6.0.5226.26700

Syntax

C#
public void DtmfDecoderSetMinimumDigitOnTime(
	uint MinimumDigitOnTimeMs
)
Visual Basic (Declaration)
Public Sub DtmfDecoderSetMinimumDigitOnTime ( _
	MinimumDigitOnTimeMs As UInteger _
)
Visual C++
public:
void DtmfDecoderSetMinimumDigitOnTime(
	unsigned int MinimumDigitOnTimeMs
)
J#
public void DtmfDecoderSetMinimumDigitOnTime(
	UInt32 MinimumDigitOnTimeMs
)

Parameters

MinimumDigitOnTimeMs
Type: System..::.UInt32
The minimum digit ON time. The DTMF decoder will not signal the application about the DTMF detection unless the DTMF digit remains in the ON state for this specified amount of time.

Return Value

Nothing.

Remarks

None.

See Also