Problem with NAT bypass with video conference using webrtc

Question

I use webrtc for video conferencing. I used this tutorial to find out. In local places, it works fine, but when I try to connect to another location in the country, it encounters NAT-related problems that the same tutorial said to solve

I need to use the TURN API server

I tried to use this queue server , but the problem is that it works in my country (India), but when I test it with my Netherlands based friends, it stops working.