ISDN Cause Numbers D-1 FlexSet 120/280 User Guide
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 manager
3 no route to destination notify system manager
4 send special information tone
5 misdialed trunk prefix
6 channel unacceptable notify system manager
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*
*If the message returns frequently notify system manager
Appendix D - ISDN Cause Numbers
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