Detecting whether or not device support phone calls?

Question

Is the below code reliable to be used to determine whether a device can support phone calls or not? My concern is if apple changes the iphone string to anything else let\'s

Answer 1

Based on @TheGuardian's answer, I think this might be a simpler approach:

   private final func canMakePhoneCall() -> Bool {
       guard UIDevice.currentDevice().userInterfaceIdiom == UIUserInterfaceIdiom.Phone else {
        return false
       }

       let mobileNetworkCode = CTTelephonyNetworkInfo().subscriberCellularProvider?.mobileNetworkCode
       let isInvalidNetworkCode = mobileNetworkCode == nil || mobileNetworkCode?.characters.count <= 0
                                                        || mobileNetworkCode == "65535"
                                                        //When sim card is removed, the Code is 65535

       return !isInvalidNetworkCode
    }