Enterasys csx100 User Guide
FlowPoint User’s Guide: Command Line Interface
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ISDN Q.931 Cause Values
ISDN link level error messages include the Q.931 cause value. The cause value displayed is the cause
number exactly or the number +128. The following table is a reference list of the Q.931 cause values.
number exactly or the number +128. The following table is a reference list of the Q.931 cause values.
Cause No.
Cause Name
1
Unassigned (unallocated) number
2
No route to specified transit network
3
No route to destination
6
Channel unacceptable
7
Call awarded and being delivered in an established channel
16
Normal call clearing
17
User busy
18
No user responding
19
User alerting, no answer
21
Call rejected
22
Number changed
26
Non-selected user clearing
27
Destination out of order
28
Invalid number format (incomplete number)
29
Facility rejected
30
Response to STATUS INQUIRY
31
Normal, unspecified
34
No circuit/channel available
38
Network out-of-order
41
Temporary failure
42
Switching equipment congestion
43
Access information discarded
44
Requested circuit/channel not available
47
Resource unavailable, unspecified
49
Quality of service unavailable