Black Box Series 5000 Reference Manual page 56

Event Logs
* Link X Connected
Generated when and end-to-end ISDN call has been established.
* Link X connection rejected
Generated when Link X connection is being terminated as it could not be attached to a remote site. This
may be due to usage limits or suspension resumptions.
* Link X - CSU/DSU not responding, Power Cycle Device.
Generated when the router cannot establish communications with the CSU/DSU link module. The power
must be cycled on the router to cause a restart of the CSU/DSU module.
* Link X Disconnect: Y
Generated when the disconnect of an ISDN call is completed. This event is generated on both sides of the
ISDN call. The cause will be one of the causes as specified in the CCITT Recommendation Q.931. Causes
of "normal call clearing", "User busy", and "Number changed" are printed in words, all other are numeric.
Code
001 Unallocated/unassigned number
002 No route to specified transit network
003 No route to destination
004 Channel unacceptable
006 Channel unacceptable
007 Call awarded and being delivered in an established channel
008 Prefix 0 dialed but not allowed
009 Prefix 1 dialed but not allowed
010 Prefix 1 dialed but not required
011 More digits received than allowed, call is proceeding
016 Normal call clearing
017 User busy
018 No user responding
019 No answer from user
020 Circuit operational
021 Call rejected
022 Number changed
023 Reverse charging rejected
024 Call suspended
025 Call resumed
026 Non-selected user clearing
027 Destination out of order
028 Invalid number format
029 Facility rejected
030 Response to STATUS INQUIRY
031 Normal, unspecified
Description
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