webrtc - currently in the open source code field, only using STUN (not use Turn Server) punching success rate is what?

Question

I would appreciate if you could help me answer the following questions:

1. In the case of large scale and various NAT type devices, currently in the open source code field, only using STUN (not use Turn Server) punching success rate is what?

2. In addition, is there any way to increase the success rate of hole punching to 99% In the case of stun only(not turn)? E.g. port prediction

3. If there has turn server, whether can make the success rate of the hole punching reach to 99.99% above?

Thanks

Answer 1

等待大神解答