public function toXMLString()
{
$str = '';
$str .= '<ns:GetMobileStatusReq>';
if ($this->GetMobileStatusRequest != null) {
$str .= '<ns:GetMobileStatusRequest>';
$str .= $this->GetMobileStatusRequest->toXMLString();
$str .= '</ns:GetMobileStatusRequest>';
}
$str .= '</ns:GetMobileStatusReq>';
return $str;
}