AT&T DEFINITY 555-230-223 - Manual (Page 18)

Introduction
Upgrading Your Existing System
If you want to have CallVisor ASAI over the DEFINITY LAN Gateway in a
non-supported switch, you must upgrade it with a field maintenance release of
G3V4 software. Contact the Technical Service Center at 1 800 248-1234 for
more information. (You will be prompted for your Social Security Number and
4-digit PIN.)
If you attempt to upgrade from a pre-G3V4 switch, you must remove the
translations (assuming you had the TN2208 circuit pack aliased as a BRI circuit
pack in the pre-G3V4 switch).
!
WARNING:
If you upgrade your system yourself, follow these precautions:
To prevent damage to the DEFINITY LAN Gateway system assembly,
make sure that you have connected the system assembly adapter cables to
the port connectors on the back of the switch (see Step 2 in Task 5: Install
the DEFINITY LAN Gateway System Assembly in Chapter 2) before you
insert the system assembly in the switch carrier.
You can install the system assembly in the switch when the switch is
powered on or off. When the assembly is inserted in the slots of the switch
carrier, it will automatically power up, run diagnostics, and boot. To avoid a
disk crash, never remove the assembly without first completing the
shutdown procedure to shut down the DEFINITY LAN Gateway system
(and allowing the disk to completely spin down).
For the same reason, do not cycle the power on the switch (for example,
during switch acceptance tests) once the system assembly is inserted
unless you have first shut down the DEFINITY LAN Gateway system. Refer
to the maintenance screens in Chapter 3 for the shutdown procedure.
Security Considerations
Toll fraud is the unauthorized use of a company’s telecommunications system by
an unauthorized third party. DEFINITY LAN Gateway offers the following
security features to help prevent toll fraud and protect against unauthorized users
gaining access to the system and learning the content of calls:
Password protection — The system requires administrators to provide a
password before access is granted. Also, when the system is installed,
default passwords are changed to help guard against unauthorized
access.
Audit trail — DEFINITY LAN Gateway provides selective logging of an
audit trail of operations carried across the interface. Users can view a set
of Security Logs to learn such information as failed login attempts,
Issue 1 January 1996 1-5