Note: The FXO Settings page is available only for FXO interfaces.
 To configure the FXO parameters:
1. Open the FXO Settings page (Configuration tab > VoIP menu > GW and IP to IP >
Analog Gateway > FXO Settings).
Figure 29-4: FXO Settings Page
2. Configure the parameters as required.
3. Click Submit to apply your changes.
4. To save the changes to flash memory, see 'Saving Configuration' on page 624.
29.5 Configuring Authentication
The Authentication page defines a user name and password for authenticating each device
port. Authentication is typically used for FXS interfaces, but can also be used for FXO
interfaces.
Notes:
• For configuring whether authentication is done per port or for the entire
device, use the parameter AuthenticationMode.
• If authentication is configured for the entire device, the configuration in
this table is ignored.
• If the user name or password is not configured in this table, the port's
phone number (configured in the Trunk Group Table) and global
password (configured by the global parameter, Password) are used
instead for authentication of the port.
• After you click Submit, the password is displayed as an asterisk (*).
• The Authentication table can also be configured using the table ini file
parameter, Authentication (see 'Configuration Parameters Reference' on
page 755) or CLI command, configure voip > gw analoggw
authentication.