We have a SimpleWebRTC ([login to view URL]) application built on ASP.NET Core MVC C#. Video/Audio chat is working fine when there is no a Firewall. However, when there is a firewall, this application is not working. Need to bypass proxy blocking.
...the network we have IPPBX installed behind the firewall at 2 locations as enclosed is the network map below. Now as it can be seen that both firewalls are connected through an IP-SEC Tunnel and both the firewalls have an IPPBX behind them. Now the issue is that when we connect from a mobile user through VPN, the mobile user is able to connect to the IP-PBX
...biggest difference here is that you cannot just connect to an open/filtered port as on a normal server! The VPN servers will be ordinary home or work computer devices that have firewalls and can be behind a NAT. Assume that you can connect to the internet on these VPN servers, but that they have no dedicated open incoming ports (such as port 1701,1194