Yes, Nokia 7 Plus does have the dual VoLTE support.
Yes, Nokia 7 Plus does have the Bothie feature.
No. Nokia 7 Plus does not support face unlock as of now. It is expected that Nokia will soon release an OTA update for it.
Yes, Nokia 7 Plus does have the headphone jack, which is located on the top panel of the phone.
Great battery life, immersive display, solid design, and software at its purest, that's the Nokia 7 Plus for you.