ISDN error codes

ISDN error codes

000 0001 1 Unallocated (unassigned) number
000 0010 2 No route to specified transit network
000 0011 3 No route to destination
000 0110 6 Channel Unacceptable
000 0111 7 Call awarded and being delivered in
an established channel
001 0000 16 Normal call clearing
001 0001 17 User busy
001 0010 18 No user responding
001 0011 19 No answer from user (user alerted)
001 0101 21 Call Rejected
001 0110 22 Number changed
001 1010 26 Non selected user clearing
001 1011 27 Destination out of order
001 1100 28 Invalid number format
001 1101 29 facility rejected
001 1110 30 Response to status enquiry
001 1111 31 Normal, unspecified
010 0010 34 No circuit/channel available
010 0110 38 Network out of order
010 1001 41 Temporary failure
010 1010 42 Switching equipment congestion
010 1011 43 Access information discarded
010 1100 44 Requested circuit/channel not available
010 1101 45 Pre-empted
010 1111 47 Resources unavailable, unspecified
011 0001 49 Quality of service unavailable
011 0010 50 Requested facility not subscribed
011 0100 52 Outgoing calls barred
011 0110 54 Incoming calls barred
011 1001 57 Bearer capability not authorised
011 1010 58 Bearer capability not presently available
011 1111 63 Service or option not available, unspecified
100 0001 65 Bearer capability not implemented
100 0010 66 Channel type not implemented
100 0101 69 Requested facility not implemented
100 0110 70 Only restricted digital information
bearer capability is available
100 1111 79 Service or option not implemented, unspecified
101 0001 81 Invalid call reference value
101 0010 82 Identified channel does not exist
101 0011 83 A suspended call exists, but this call identity does not
101 0100 84 Call identity in use
101 0101 85 No call suspended
101 0110 86 Call having the requested call identity has been cleared
101 1000 88 Incompatible destination
101 1011 91 Invalid transit network selection
101 1111 95 Invalid message, unspecified
110 0000 96 Mandatory information element is missing
110 0001 97 Message type nonexistent or not implemented
110 0010 98 Message not compatible with call state or
message type nonexistent or not implemented
110 0011 99 Information element nonexistent or not implemented
110 0100 100 Invalid information element contents
110 0101 101 Message not compatible with call state
110 0110 102 Recovery on timer expiry
110 1111 111 Protocol error, unspecified
111 1111 127 Interworking, unspecified