Позвонить - Swift 5

func callMe() {
let url = NSURL(string: "tel://+7......")

//Проверка ОС
if #available(iOS 10.0, *) {
UIApplication.shared.open(url as! URL, options: [ : ], completionHandler: { (success) in
})
}
else
{
let success1 = UIApplication.shared.openURL(url as! URL)
print(success1)
}