Callkit pannel Video button gray out

When use callkit, video button in callkit pannel is abnormal. Here are some case: iOS117 & incoming call: video button disable iOS17 & outgoing call: video button disable iOS16 & incoming call: video button enable iOS16 & outgoing call: video button disable

will appricate for help!

Core code:

private func configureCallKit() {
        let configuration = CXProviderConfiguration(localizedName: "CallkitTesting")
        configuration.supportsVideo = true // 是否支持视频通话
        configuration.supportedHandleTypes = [.generic]
        configuration.maximumCallGroups = 1
        configuration.maximumCallsPerCallGroup = 1
        
        
        provider = CXProvider(configuration: configuration)
        provider.setDelegate(self, queue: nil)
    }

func startOutgoing() {
        let handle = CXHandle(type: .generic, value: "!!!!!!")
        let startCallAction = CXStartCallAction(call: UUID(), handle: handle)
        let transaction = CXTransaction(action: startCallAction)
        
        CXCallController().request(transaction) { error in
            if let error = error {
                print("Error requesting transaction: \(error.localizedDescription)")
            } else {
                print("Transaction requested successfully")
            }
        }
    }