My Phone Assistant

My Phone is just a simplified copy cat of Your Phone developed by Microsoft, but supports iOS, Windows Phone, and any other mobile devices come with Bluetooth HFP (hands-free profile) feature.

Features

Calling
SMS messaging
Phonebook access
Notifications

Features compared with Your Phone

Feature	Your Phone	My Phone
Calling	✔	✔
SMS messaging	✔	✔¹
Phonebook access	✔	✔¹
Notifications	✔	✔¹
Share photos and files	✔	❌
Use mobile apps from PC	✔²	❌
Supported mobile devices	⚠Android Only	✔Android, iOS, Windows Phone, and all Bluetooth-HFP-enabled devices

1: will be implemented in the future
2: only available for selected Android devices

Keep in mind that My Phone was built only because Microsoft Your Phone does not support iOS, Windows Phone and other devices. If you are an Android user, you'd better use Your Phone.

Implementation

Project structure

Project	Type	Description
MyPhone.TrayApp.XamlHost	C++ UWP Project	XAML island host
MyPhone.TrayApp	C++ Win32 Project	Main app logic, system tray UI and UWP "broker". Enable the UWP app to call Win32 APIs and keeping the app running in the background. Use XAML island to make the system tray UI has the same look and feel as native UWP system apps. This project handles main app logic including Bluetooth HFP stuff.
MyPhone	C# UWP Project	Main app UI
PackageProject	Desktop Bridge Packaging Project	Generate MSIX app package

Bluetooth HFP

This app use Windows Runtime APIs: Windows.ApplicationModel.Calls , Windows.Devices.Bluetooth and Windows.Devices.Enumeration to make the HFP works.

Use ``Windows.Devices.EnumerationAPI to enumerate availablePhoneLineTransportDevice` (paired Bluetooth devices that support HFP),
Call PhoneLineTransportDevice.RegisterApp to register the device for HFP
Then the system will handle the rest (establishing HFP Service Level Connection and etc.) for you.

Note that Your Phone use the same APIs mentioned above.

Self-implemented HFP stack?

Self-implementing a HFP stack is a little bit problematic because the only way to establish a SCO audio connection and transfer audio is to write a custom user-mode profile driver and let the end-user to install it. That's quite inconvenient for end-users to use this app.

Actually, I did try to implement HFP stack before. I managed to establish the HFP Service Level Connection (SLC) and successfully make the phone call via SLC, but failed to establish SCO audio connection and transfer any audio due to the reason above. If you're interested in how to establish HFP Service Level Connection, you may find the demo project MyPhone.CLI in legacy branch.

System requirement

Windows 10 version 1903 (build 10.0.18362) or above

Contributing

Requirements

Windows 10 version 1903 or above.
Visual Studio 2019 with .NET, UWP and C++ workload

Build

Clone repo git clone --recursive https://github.com/BestOwl/MyPhone.git
Open MyPhone.sln with Visual Studio
Set PackageProject as startup project
Set build architecture to ARM, x86 or x64. (AnyCPU is not supported)
Build and run

Feel free to contribute some code :)

comor86 / MyPhone