Cause #
19
no answer from user (user alerted)
21
call rejected
22
number changed
23
reverse charging rejected
24
call suspended
25
call resumed
26
non-selecting user clearing
27
destination out of order
28
invalid format (address incomplete)
29
facility rejected
30
response to status inquiry
31
normal unspecified
33
circuit out of order
34
no circuit/channel available
35
destination unattainable
37
degraded service
38
network out of order
39
transit delay range cannot be achieved
Appendix D: ISDN Cause Numbers
CODE MEANING
call later
call later
check number and call again*
call later
check number and call again*
notify system administrator
no action*
call later*
wait and call later
260
T207M, T208M, T207M/NP, T208M/BL User Guide
ACTION
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