The Avaya MM340 Media Module provides one WAN access port for the connection of an E1 or T1 data WAN. The MM340 may be deployed as an interface to an IP-routed private enterprise network or as an interface to an Internet service provider.

MM340 E1/T1 data WAN Media Module is not supported in the G430 Branch Gateways. The G450 Branch Gateway v1, v2, and v3 supports the MM340 E1/T1 WAN and MM342 Universal Serial Port WAN media modules.

The G450 Branch Gateway v4 does not support the MM340 and MM342 Media Module.