Declaration

Visual C#:

int SendDTMF(string DTMF);

Visual C++:

long SendDTMF(CString DTMF);

Visual Basic:

Private Sub SendDTMF(ByVal DTMF As String) As Integer.

Delphi:

function SendDTMF(DTMF : String) : Integer;

Parameters

DTMF

    String containing digits to be sent as DTMF tones.

Return Value

    Return 1 if the send was successful; otherwise return Error Code.

Remarks

Send a sequence of DTMF tones to the phone. This can be used to control call centre systems that respond to tone-dialing signals. You must have a voice call in progress for this to work.

See Also AnswerCall, EndCall, DialCall