The Avaya G450 Branch Gateway is a multipurpose Branch Gateway that can be deployed in medium to large-sized branch locations or in wiring-closets, servicing buildings, and floors in a campus environment. The Avaya G450 Branch Gateway works in conjunction with the Communication Manager IP telephony software running on Avaya S8300E servers to provide intelligent communications to enterprises of all sizes.

The Avaya G450 Branch Gateway combines telephone exchange and data networking features by providing PSTN toll bypass and routing data and VoIP traffic over WAN. The Avaya G450 Branch Gateway features a VoIP engine, an optional WAN router, and Ethernet LAN connectivity. Avaya G450 Branch Gateway provides full support for Avaya IP and digital telephones as well as analog devices such as modems, fax machines, and telephones.