Hello,
@srinivas.teegapuram I'm having this doubt, are you talking about having a video call from your default dialer, if yes let me tell you video-over-LTE is possible on rog phone 2 and i had done video calls with the same. Here's few things which u might need.
1. I'm using JIO sim, don't know this might work with other networks as well but on JIO is works fine.
2. The person you dialing and yourself should have google dialer installed.
3. I have tried video calling from JIO to JIO and it worked perfectly fine, and i could make it effortlessly.
@Anders_ASUS if s/he talking about video-over-LTE then it's possible if you have met the above conditions.