10
TROUBLESHOOTING
Overview This chapter contains maintenance and troubleshooting information that
can help you resolve simple problems. It covers these topics:
■ Telephone Troubleshooting
■ Using the Telephone Local User Interface (LUI) Utility
■ Using H3PingIP
■ System-level Troubleshooting
■ Digital Line Card Troubleshooting
■ Alarm Conditions (Overview)
■ Alarm Descriptions
■ Alarms on NBX Digital Line Cards
■ Configuration and Status Reports
■ Connecting a Computer to a Serial Port
■ Servicing the Network Call Processor Battery
■ Getting Service and Support
The SuperStack 3 NBX hardware needs no routine maintenance.
However, you should perform periodic backups of the configuration
database, especially after you make changes to system or user
configurations.
