Avaya 6424D+M User Manual download pdf (Page 68)

Table A-3: Q.931 Cause Messages

Decimal

Value EIA Port Text LCD Text

1 Unassigned number 1

2 No route to specified network 2

6 Channel unacceptable 6

16 Normal, clearing 16

17 User busy BUSY

18 No user responding NO RESPONSE

19 No answer from user (user alerted) NO ANSWER

21 Call rejected 21

22 Number changed 22

27 Destination out of order 27

28 Invalid number format (incomplete number) 28

29 Requested facility rejected 29

30 Response to STATUS ENQuiry 30

31 Normal, unspecified 31

34 No channel available 34

35 Call queued 35

41 Temporary failure 41

42 Network congestion 42

43 Access information discarded 43

47 Resources unavailable, unspecified 47

50 Requested facility not subscribed 50

52 Outgoing calls barred 52

54 Incoming calls barred 54

58 Bearer capability not presently available 58

63 Service or option not available 63

65 Bearer service not implemented 65

66 Channel type not implemented 66

69 Requested facility not implemented 69

79 Service or option not implemented, unspecified 79

81 Invalid call reference value 81

82 Identified channel does not exist 82

85 Invalid digit value for number 85

86 Call having requested call identity has been cleared 86

88 Incompatible destination 88

91 Transit network does not exist 91

96 Mandatory information element is missing 96

97 Message type non-existent or not implemented 97

98 Message not compatible with call state 98

100 Invalid information element contents 100

111 Protocol error, unspecified 111

127 Interworking, unspecified 127

ALL OTHERS nnn Cause nnn

A-4 Appendix A — Cause Code Tables

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 74

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