Yes, Nokia 7 Plus does have the dual VoLTE support.
No. Nokia 7 Plus can support only 2G, 3G & 4G network. It does not support 5G network.
Yes, you can record 4K videos with Nokia 7 Plus at 30fps.
Yes, Nokia 7 Plus does come with 18W fast charger in the box itself.
Great battery life, immersive display, solid design, and software at its purest, that's the Nokia 7 Plus for you.