A p p e n d i x D - I S D N C a u s e N u m b e r s
Cause #
0
valid cause code not yet received
1
unallocated (unassigned) number
2
no route to specified transit network
3
no route to destination
4
send special information tone
5
misdialed trunk prefix
6
channel unacceptable
7
call awarded and being delivered in an established channel
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)
*If the message returns frequently notify system manager
ISDN Cause Numbers
CODE MEANING
l
check number and call again*
notify system manager
notify system manager
notify system manager
no action*
no action*
D-1
ACTION
FlexSet 120/280 User Guide
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