It has wifi direct, I don’t know about volte because I’m using it on WiFi.
Still not a single restart, extremely stable and fast, from problematic build to a perfect rom, thanks to @ronnz98 ! I’ve just looked at uptime and it’s at 794 hours 
The thanks should mainly go to https://xdaforums.com/m/riskyinit.12685539/
https://xdaforums.com/t/rom-android-12-1-unofficial-lineage-os-19-1-for-sm-a217f.4704871/
He’s also working now on LOS21 and LOS22 version!
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Update for /e/OS-T 2.7:
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Hello @perime, welcome to this forum.
none alternative android OS support voLTE on any Samsung devices.
This rom installs and boots fine, so far so good.
I have several of these phones, the first one is still on 2.5. and I will compare it with the second which is on 2.7. now.
The third is for e/os/ GSI testing, I haven’t decided yet what to do with the fourth 
Thank you for the update.
You might try another GSI…
The one from today
https://sourceforge.net/projects/eosbuildsronnz98/files/GSI/
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