These are files used to enable IMS (VoLTE) for Samsung Galaxy Tab A7 (SM-T505). Original files were taken from Samsung Firmware T505XXS7CXB1, with extensive modifications for enabling its use on AOSP ROMs. While VoLTE has been confirmed to work on LineageOS 21 for T505, additional works are needed for the following:
- Enabling its use without setting SELinux to permissive
- Testing it on other Android versions and other Galaxy devices
- Enabling Video Call
- Enabling RCS
- Bug fixes & Stabilizations
While it has been tested only on T505 Indian version, it is likely that this will also work on other Samsung devices (albeit with some modifications.) It's most likely to be compatible with trebilized Exynos devices. However, it doesn't mean that compatibility with Snapdragon or MediaTek devices is completely ruled out. As they seem to use the same RIL interface (libsec-ril), there is some chance that this will work with these devices (again, though, with some modifications.)