Avaya G430 Manual page 266

WAN interfaces
Note:
In a situation where the same modem is used for inbound Avaya Service calls and outbound
dial backup calls, only one call can be active at any time.
Note:
Refer to
modem directly.
Configuration example
This example sets up a modem dial backup for the WAN link between a branch office and the
headquarters data center. The branch office is connected to the corporate network using a
Branch Gateway. IP phone users in the branch office connect to an MGC located in the
headquarters data center, and an RAS is located in the headquarters data center, with multiple
phone lines available for dial access. The primary WAN connection is a broadband link
connected to the WAN FastEthernet port. The Dialer PPP session uses CHAP encryption. The
corporate network is routed using OSPF. An analog trunk connects the branch office to the
PSTN for non-corporate bearer traffic.
Note:
When using a broadband modem (either xDSL or cable), it is recommended to run the VPN
application.
The following figure shows the network topology.
266 Administering Avaya G430 Branch Gateway
www.multitech.com for a listing of modem AT commands used to configure the
Comments? infodev@avaya.com
October 2013