let alertController = UIAlertController(title: model.telephone, message: nil, preferredStyle: .Alert)

let cancelAction = UIAlertAction(title: "取消", style: .Cancel, handler: nil)

let confirmAction = UIAlertAction(title: "呼叫", style: .Default, handler: { (alertAction) in

    let url = NSURL(string: "tel://\(10086)")

     if UIApplication.sharedApplication().canOpenURL(url!) {

          UIApplication.sharedApplication().openURL(url!)

    }

})

alertController.addAction(cancelAction)

alertController.addAction(confirmAction)

presentViewController(alertController, animated: true, completion: nil)

let url = NSURL(string: "telprompt://\(10086)")

if UIApplication.sharedApplication().canOpenURL(url!) {

UIApplication.sharedApplication().openURL(url!)

}

调用系统的打电话程序拨打电话时，上述两段代码效果相同。