Specifications

Troubleshooting
72 ISDN-Controller B1 PCI v4.0 – 14 Troubleshooting
14 Troubleshooting
This chapter describes general malfunctions and specific er-
ror messages, and suggests remedies. The error messages
are grouped according to the operating systems in which the
AVM ISDN-Controller B1 PCI v4.0 can be operated.
14.1 General Malfunctions
The AVM ISDN-Controller is not detected or not initialized.
Have you installed new hardware components or changed
the configuration of existing hardware?
If you combine adapters without plug-and-play support (Leg-
acy) such as the AVM ISDN-Controller B1 v3.0 in the same
system with PCI or ISA plug-and-play cards, the resources
(I/O addresses and IRQ levels) used by the hardware without
plug-and-play support should be so designated in the com-
puter’s BIOS.
You are unable to establish an ISDN connection.
If the ISDN-Controller is correctly installed but you are unable
to establish a connection, check for the following conditions:
z Is the ISDN-Controller firmly inserted in the PCI slot? Is
its slot plate screwed down?
z Are the ISDN cable connectors firmly connected to the
ISDN-Controller and the ISDN socket?
z Is your ISDN line active? Use another terminal device,
such as an ISDN telephone, to check it.
z Is your network terminator (NT) installed correctly?
Some NTs must be connected to an electricity supply as
well as to the incoming ISDN line.
z If your ISDN-Controller is connected to a point-to-point
line, have you included the outside dialing prefix (usu-
ally ‘0’) in the numbers dialed?
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