System core

com.samsung.app.jansky

Risk: Safe
Source: Manufacturer
What it is: System core

What it is

Multi-lines settings

Lets you have multiple virtual phone numbers.

This feature is only available on some US carrier-locked devices

https://www.reddit.com/r/GalaxyS8/comments/6esiub/tmobile_s8s8_multiline_setting_is_awesome/did2pur/

Commands

adb shell pm uninstall --user 0 com.samsung.app.jansky

To put it back:

adb shell cmd package install-existing com.samsung.app.jansky

Every removal listed here is per-user only: the system image is untouched, and the restore command puts the app back from the copy already on the device. Nothing is downloaded.

This is not the directory. Here we say what a package is in general; what happens on your particular television is on your model's entry, and that one wins. The same package can be dead weight on one set and hold the home screen up on another.