@Override
    public String toString() {
        if ((this._product == null)||((this._product).contentEquals("none"))) {
            if (_action == Action.ADD) {
                return ("Add-Contact: " + _extension + "\n");
            } else {
                return ("Remove-Contact: " + _extension + "\n");
            }
        } else {
            if (_action == Action.ADD) {
                return ("Add-Contact: " + _extension + " " + _product + "\n");
            } else {
                return ("Remove-Contact: " + _extension + " " + _product + "\n");
            }
        }
    }