Very good but expensive. The fact that I can use it as an Android is a plus plus plus. Now I make viber calls from there. I have even installed the home assistant. The -1 star is only for its price, but if your pocket can handle it, don't hesitate

Too many customizations that probably overwhelm the average user.
WARNING: Does not accept regular telephone cable.
It needs to be configured as a VoIP phone (so it can only work with such connections - OTE provides the necessary parameters, other providers do not).
The software runs smoothly.
It looks beautiful in the office.
It can handle up to 20 accounts (so it can be used in a medium to large company).
Sound quality: very good.
Comparatively better than the Yealink phones that work with Android 5.
A bit expensive but unique!