Lucent Technologies 5800 Series Manuale Utente

Dial Backup provides a backup connection to the Internet through an external 

V.90 modem, connected to the console port of your router.  This backup 

connection can be activated in the event of a DSL service interruption.  During a 

DSL interruption, your router will use the dialup modem connection while 

waiting for DSL service to be restored.  Once the DSL link is active again, Dial 

Backup will automatically switch back to the DSL service.  Voice service is 

disabled during dial backup.

A special console connector is required to configure Dial Backup.  This 

connector can be ordered through your Internet Service Provider, or from the 

Efficient Networks web site at the following URL:  http://www.efficient.com/

To access the Dial Backup screen, select the Dial Backup link from the Router 

Information screen.  The Dial Backup screen will appear.  To enable Dial 

Backup, follow these steps:

1. Enter your user name and password as provided from your ISP.

2. Enter at least one telephone number for dialup access to your ISP.

3. Click the OK button to continue with Dial Backup Configuration.

4. The next scren provides settings for Dial Backup Configuration:

–

Failover after connection is lost:  This setting specifies the time 

interval between losing the DSL connection and switching to 

the dialup modem connection.

–

Resume DSL after connection is lost:  The time interval 

between checks for service restoration is called the retry 

period.  After each retry period, your router will test the DSL 

connection for service.  If service is restored, the router will 

switch data traffic to the DSL connection.  The serial port will 

revert to its default function as the console port. 

–

Serial Port Data Rate:  This field specifies the maximum rate at 

which data can flow through the serial port.  This setting 

should equal the maximum baud rate of the attached modem.

–

Modem Initialization String:  This field sets the initialization 

string used by the V.90 modem attached to the console port of 

the router.

–

Modem Dial String: Sets the dial string for one of two possible 

dialing options; pulse or tone dialing.  The default is tone 

dialing.

5. You will need to reboot your router to enable changes to Dial 

Backup.