The G4xx Media Gateways offer interfaces for digital and analog stations, trunks, and various media services, such as facilitating 6-party conferences and announcements. Until Avaya Aura® Release 10.1, G4xx Media Gateways were installable solely in branch offices connected to a common network with other branches and the headquarter sites.

Since the Avaya Aura® Release 10.1, the G4xx Media Gateway supports a new network topology (Edge Friendly) where branch offices are on separate networks, interconnected through the Internet or through SD-WAN.

With the Release 10.2, the survivable components, Survivable Remote Server (LSP), and Branch Session Manager (BSM), can also deploy in the Edge Friendly topology. The Edge Friendly configuration facilitates integration between on-premises gateways and survivable servers with a core Communication Manager hosted in the Cloud.