/// <summary>
/// Sends DTMF response.
/// </summary>
/// <param name="response">DTMF response type.</param>
/// <exception cref="InvalidOperationException">Thrown when method failed due to invalid operation.</exception>
public void SendDtmfResponse(DtmfResponseType response)
{
int ret = Interop.CallManager.SendDtmfResponse(_handle, response);
if (ret != (int)CmError.None)
{
Log.Error(CmUtility.LogTag, "Failed to send DTMF response, Error: " + (CmError)ret);
CmUtility.ThrowCmException(ret, _handle);
}
}
internal static extern int SendDtmfResponse(IntPtr handle, DtmfResponseType respType);
