29 Appendix
380
ARGUS 152
C) CAUSE-Messages – DSS1 Protocol
Dec. Cause
Description
01
Unallocated (unassigned) number
No access under this call number
02
No route to specified transit network
Transit network not reachable
03
No route to destination
Wrong route or routing error
06
Channel unacceptable
B channel for the sending system not acceptable
07
Call awarded and being delivered in
an established channel
Call awarded and connected in an already existing channel
(e.g., X.25 virtual switched connection)
16
Normal call clearing
Normal clearing
17
User busy
The number called is busy
18
No user responding
No terminal equipment answered (Timer NT303 / NT310
time-out)
19
No answer from user (user alerted)
Call time too long
21
Call rejected
Call rejected (active)
22
Number changed
Call number has been changed
26
Non-selected user clearing
Incoming call not awarded to this terminal
27
Destination out of order
Destination / access out of order
28
Invalid number format (address
incomplete)
Wrong call number format or call number incomplete
29
Facility rejected
Requested service is rejected
30
Response to status inquiry
Response to status inquiry
31
Normal, unspecified
Unspecified for "normal class" (Dummy)
34
No circuit / channel available
No circuit / B channel available
38
Network out of order
Network not operational
41
Temporary failure
Network is temporarily not operational
42
Switching equipment congestion
Switching equipment is overloaded
43
Access information discarded
Access information could not be transferred
44
Requested circuit / channel not
available
Requested circuit / B channel is not available
47
Resources unavailable, unspecified
Unspecified for "resource unavailable class" (Dummy)
49
Quality of service unavailable
The requested quality of service is not available
50
Requested facility not subscribed
Requested service attribute not subscribed
57
Bearer capability not authorized
The requested bearer capability is not enabled
58
Bearer capability not presently
available
The requested bearer capability is not currently available
63
Service or option not available
Unspecified for "service unspecified or option not available
class" (Dummy)
65
Bearer capability not implemented
Bearer capability is not supported
66
Channel type not implemented
Channel type is not supported
69
Requested facility not implemented
Requested facility is not supported
70
Only restricted digital information
bearer capability is available
Only limited bearer capability is available