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Коды отбоев Q931 (Disconnect Cause Codes)

Cisco Disconnect Cause Codes isdn-disc-code c описанием по использованию Disconnect Cause Codes q931 q931-disconnect-cause-code-list
Item Q.931 cause Code Q.931 diagnostic
1 Unallocated (unassigned) number 1 Condition: unknown, transient, permanent
2 No route to destination 3 Condition: unknown, transient, permanent
3 Channel unacceptable 6 (None)
4 Normal call clearing 16 Condition: unknown, transient, permanent
5 User busy 17 (None)
6 No user responding 18 (None)
7 No answer from user (user alerted) 19 (None)
8 Call rejected 21 Condition: unknown, transient, permanent + user applied diagnostics
9 Number changed 22 New destination address
10 Destination out of order 27 (None)
11 Invalid number format (address incomplete) 28 (None)
12 Normal, unspecified 31 (None)
13 No circuit/channel available 34 (None)
14 Network out of order 38 (None)
15 Temporary failure 41 (None)
16 Switching equipment congestion 42 Network identity
17 Requested circuit/channel not available 44 (None)
18 Resource unavailable, unspecified 47 (None)
19 Quality of service not available 49 Condition: unknown, transient, permanent
20 Bearer capability not authorized 57 Attribute number
21 Bearer capability not presently available 58 Attribute number
22 Service or option not available, unspecified 63 (None)
23 Bearer capability not implemented 65 Attribute numbers
24 Channel type not implemented 66 Channel type
25 Service or option not implemented, unspecified 79 (None)
26 Valid call reference value 81 (None)
27 Identified channel does not exist 82 Channel identity
28 Incompatible destination 88 Incompatible parameter
29 Invalid message, unspecified 95 (None)
30 Mandatory information element is missing 96 Information element identifier(s)
31 Message type nonexistent or not implemented 97 Message type
32 Message not compatible with call state or message type non-existent or not implemented 98 Message type
33 Information element/parameter non-existent or not implemented 99 Information element identifier(s)
34 Invalid information element contents 100 Information element identifier(s)
35 Message not compatible with call state 101 Message type
36 Recovery on timer expiry 102 Timer number
37 Protocol error, unspecified 111 (None)
38 Interworking, unspecified 127 (None)
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