Incoming call handle

[vvtoan]

Hi.
I want to handle incoming call to display customer's informations in our crm. Is there any api can do that?
When i use
var result = await BTDevice.GetRfcommServicesForIdAsync(RfcommServiceId.FromUuid( new Guid("0000111F-0000-1000-8000-00805F9B34FB")),BluetoothCacheMode.Uncached);

            if (result.Services.Count > 0)
            {
                BTService = result.Services[0];
                var status = await BTService.RequestAccessAsync();
                BTSocket = new StreamSocket();
                await BTSocket.ConnectAsync(BTService.ConnectionHostName, BTService.ConnectionServiceName,
                    SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);

                _writer = new DataWriter(BTSocket.OutputStream);
                _reader = new DataReader(BTSocket.InputStream);

                return true;
            }
            else
            {
                Debug.WriteLine("This device does not support HFP");
                return false;
            }

I has an error 'DeniedBySystem'

Thanks you.

[BestOwl]

Is this a UWP or Win32 app?

[BestOwl]

The HFP demo here should work without errors.

[vvtoan]

Hi
"Is this a UWP or Win32 app?": UWP app
When i run HFP demo i get an error.

[BestOwl]

You should run the Do() method instead.

DoTest is a demo to show how to use the PhoneLineTransportDevice API, which can only be called in an MSIX-packaged app. That's why you got this error in MyPhone.Demo because it is a Win32 .NET console app. I will document the demo code later.

For UWP apps, if you want to use the PhoneLineTransportDevice API, you need to add these permissions in the manifest:

MyPhone/MyPhone/Package.appxmanifest

Lines 55 to 57 in 5d0015d

	<uap:Capability Name="phoneCall"/>
	<rescap:Capability Name="phoneLineTransportManagement"/>
	<rescap:Capability Name="phoneCallSystem"/>

[vvtoan]

This issues was resolved.
Thanks you.