Embodiments provide systems and methods for exchanging media through an edge server between different communication networks. More specifically, embodiments of the present disclosure provide systems and methods for establishing and conducting voice and/or video communications between one or more parties on a private network, such as within an enterprise, and one or more parties on a different network such as another private network or an open network such as the Internet using an edge server of the enterprise network. This edge server, also referred to herein as a Session Border Controller (SBC), can be adapted to allow media packets to traverse through a port typically kept open by enterprise firewalls and used for other data exchanges such as HyperText Transfer Protocol (HTTP) data traffic. The SBC can also provide multiplexing and demultiplexing of media streams through the same port and address to traverse firewalls between the different communication networks.