Appendix D: ISDN Cause Numbers
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FlexSet-IP 280S User Guide
Appendix D: ISDN Cause Numbers
Cause #
CODE MEANING
ACTION
0
valid cause code not yet received
1
unallocated (unassigned) number
check number and call again*
2
no route to specified transit network
notify system administrator
3
no route to destination
notify system administrator
4
send special information tone
5
misdialed trunk prefix
6
channel unacceptable
notify system administrator*
7
call awarded and being delivered in an established
channel
no action
8
prefix 0 dialed but not allowed
9
prefix 1 dialed but not allowed
10
prefix 1 dialed but not required
11
more digits received than allowed
16
normal clearing (message displayed as text)
no action*
17
user busy (message displayed as text)
call later
18
no user responding
call later