/// <summary>
/// Open the line.
/// </summary>
/// <returns>Indicator showing if the open was successful, 0 otherwise.</returns>
public override int Open()
{
int res = -1;
if (this.openReferenceCount == 0)
{
res = this.tapiCti.CtiTapi.Open(DevID);
if (res >= 0)
{
Calls = CallsClassProvider.Instance();
//new CallsClass( cti, this );
Calls.Init(this.tapiCti, this);
}
}
this.openReferenceCount++;
return(res);
}
