How to get a CNContact phone number(s) as string in Swift?

I found the solution: (contact.phoneNumbers[0].value as! CNPhoneNumber).valueForKey("digits") as! String

you can get contact.phoneNumbers from CNLabeledValue:

for phoneNumber in contact.phoneNumbers {
  if let number = phoneNumber.value as? CNPhoneNumber,
      let label = phoneNumber.label {
      let localizedLabel = CNLabeledValue.localizedStringForLabel(label)
      print("\(localizedLabel)  \(number.stringValue)")
  }
}

/* Get only first mobile number */

    let MobNumVar = (contact.phoneNumbers[0].value as! CNPhoneNumber).valueForKey("digits") as! String
    print(MobNumVar)

/* Get all mobile number */

    for ContctNumVar: CNLabeledValue in contact.phoneNumbers
    {
        let MobNumVar  = (ContctNumVar.value as! CNPhoneNumber).valueForKey("digits") as? String
        print(MobNumVar!)
    }

 /* Get mobile number with mobile country code */

    for ContctNumVar: CNLabeledValue in contact.phoneNumbers
    {
        let FulMobNumVar  = ContctNumVar.value as! CNPhoneNumber
        let MccNamVar = FulMobNumVar.valueForKey("countryCode") as? String
        let MobNumVar = FulMobNumVar.valueForKey("digits") as? String

        print(MccNamVar!)
        print(MobNumVar!)
    }