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Chapter 5: Troubleshooting
160 Troubleshooting guide
An ISDN
connection
cannot be
established
The cable is not
properly
connected.
Connect the cable.
You have
connected to the
LAN interface.
Connect the cable to the interface
marked ISDN.
The cable type or
connector type is
not correct.
For information on the correct
type of connector and cable, refer
to the installation manual.
Incoming phone
calls: The call type
used for the call is
not selected in the
web interface.
Make sure the call type used for
calls to the terminal is selected in
the web interface. Access the web
interface and select SETTINGS >
ISDN. Then select the call type for
incoming calls.
FB250: The ISDN
service is not
supported.
Use another service. You may still
use the ISDN interface on the
terminal, but only Standard voice
and 3.1 kHz Audio are available.
No phones are
ringing on
incoming calls
The Mute function
is activated from
an external device
connected to the
I/O interface of the
terminal.
If the Mute function should not be
activated, deactivate it from the
external device.
Problem Possible Cause Remedy
BGAN-X_UM.book Page 160 Wednesday, April 30, 2008 12:48 PM