4. Feature-Specific Configuration
9000-A2-GB31-00 December 2002 4-5
Setting Up Dial Backup
When configuring units with ISDN backup capability, the following guidelines
apply:
nCentral site configuration guidelines:
— Set up the ISDN DBM physical interface.
— If a BRI DBM, change the Automatic Backup Configuration to
Multi_Site_Backup. (A PRI DBM is already configured for multisite
backup.)
— Modify the Link Profile(s) that Automatic Backup Configuration created to
add a phone number.
nRemote site configuration guidelines:
— Set up the ISDN DBM physical interface.
— If a PRI DBM, change the Automatic Backup Configuration to
Single_Site_Backup. (A BRI DBM is already configured for single-site
backup.)
— Modify the HQ_Site Link Profile that Automatic Backup Configuration
created to add a phone number.
— Set the criteria by which automatic backup will take place.

Setting Up the DBM Physical Interface

Procedure
1. Configure the DBM interface.
Main Menu→Configuration→IS DN→Physical
2. Enable the interface, and enter the Service Profile IDs (SPIDs) and lo cal
phone numbers.
3. Save the configuration.
See Table3-20, ISDN BRI D BM Physical Interface Options (9126, 9626), or
Table3-21, ISDN PRI DBM Phys ical Interface Options (9128), in Chapter 3,
Configuration Options, for configuration information.