User guide
Table Of Contents
- Title Page
- About
- Contents
- Introduction
- Installing the AR100 Series Internet Router
- Getting Connected
- About Web Access to the AR100
- Configuring for the First Time
- Configuring for a Leased Line
- Changing Your Configuration
- Using Telephony Services
- Accessing Router Utilities
- Troubleshooting
- Safety and Statutory Information

Troubleshooting 10-19
Output. The Output page shows data about the last few ISDN calls, successful
or otherwise.
Figure 10-14: Example output on the ISDN Calls Output page
If a time value is given in the Duration column the ISDN call connected for this
length of time. If the values in the Duration column are CLEARED the calls
have never been connected. The cause column gives a code for the reason a call
was disconnected. The descriptions following of some of the more common
cause codes may help you identify where the ISDN problem is occurring.
In the cause codes the letter U (User) means that your router closed the ISDN
call, while the letter N (Network) means that either the ISDN switch or the
router at the other end closed the ISDN call.
The cause code number may be one of the following.
■
1 - Invalid number
The number you are calling is not assigned to any connection. Check the
number you are calling.
Note: This cause code also occurs if your router is connected to a centrex service,
and you are calling a number outside of the centrex extensions, but have not
preceded it with the prefix for an 'outside line'.
■
16 - Normal call clearing
This shows that there was no problem with the ISDN call, but the call was
closed for a higher layer reason. In particular, if the call duration was about
2-5 seconds, then the problem is likely to be an incorrect username or pass-
word. Check the username and password for connection to your ISP or re-
mote office. If unsure, contact your ISP or the network administrator at your
remote office.
■
17 - User busy
This is like an engaged signal on a voice call, and does not indicate a config-
uration problem. Try this call again later.
■
18 - No user responding
There seems to be a device at the far end which has a LAPD connection to
the switch but it is not responding to the call setup messages. This may in-
dicate that the device at the far end has been set up to only make outgoing
Call Name Start Time Duration Dir Number Cause
----------------------------------------------------------------------------
tdc 12-Dec-1997 11:18:51 CLEARED OUT 035439003 U16,-
chs 12-Dec-1997 11:19:03 CLEARED OUT 073333333 N1,-
ajpwlg 12-Dec-1997 11:19:36 0:01:01 OUT 044940190 U16,-
ajpwlg 12-Dec-1997 11:23:12 0:01:01 OUT 044940190 U16,-
abb 12-Dec-1997 11:23:33 0:00:4 OUT 093560114 U16,-
ajpwlg 12-Dec-1997 11:24:05 CLEARED OUT -
ajpwlg 12-Dec-1997 11:24:25 0:01:02 OUT 044940190 U16,-
ajpwlg 12-Dec-1997 11:24:27 CLEARED OUT 044940190 N21,-
gc 12-Dec-1997 11:25:14 CLEARED OUT 3776569 N27,-
ppta 12-Dec-1997 11:25:38 CLEARED OUT 043842672 N17,-
to_boe 12-Dec-1997 11:26:13 CLEARED OUT 00441256376991 N18,-
pfricc 12-Dec-1997 11:26:38 CLEARED OUT 3432977 N17,-
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