UC-Series VoIP PBX supports OpenVPN. it can act as an OpenVPN client to establish a connection with the VPN server access to VPN services.
OpenVPN is a software based on VPN protocol. OpenVPN uses VPN techniques to secure point-to-point and site-to-site connections. You can use VPN connection to bypass geographic restrictions and government censorship by hiding your real IP address on the Internet. Also, OpenVPN encrypts your Internet data and traffic to keep it from being monitored and threatened by hackers.