Interphase Tech iSPAN 5535 PRI - Manual (Page 63)

Chapter 4: Installing the Software
iSPAN PRI PCI ISDN Users Guide 43
C
AUTION
If a Windows NT Service Pack was installed on the system
after the first Windows NT installation, you must reinstall
it before restarting the computer. For installation
information, see the latest available version of your
Service Pack help. If you do not reinstall the Service Pack,
the Remote Access Service will probably fail to start, or
will not behave correctly when connecting ISDN lines.
To determine whether a Service Pack is installed, see
Index of Common Tasks on page 115.
8. If the system is a Windows NT basic system, with no
service pack installed, click Yes to restart the computer.
Otherwise, click No. Then reinstall the Windows NT
Service Pack before restarting the system.
Next, continue the software installation by checking the ISDN
line, as described in the next section.
Checking the ISDN Line with LoopTest
After you have installed and configured the adapter software
and restarted Windows NT, you can check your ISDN line
using the LoopTest utility. This utility calls itself and
establishes two ISDN B channels. One of the channels is set to
listen, and the second channel calls the first one.