AT&T 7506 User Manual page 70

Decimal Value
1 Unassigned number
2 No route to specified network
3 No route to destination
4 Vacant code
6 Channel unacceptable
7 Call awarded - being delivered
8 Prefix 0 dialed in error
8 Call is proceeding
9 Prefix 1 dialed in error
10 Prefix 1 not dialed
11 Excessive digits received, call is proceeding
13 Service denied
16 Normal, clearing
17 User busy
18 No user responding
19 No answer from user (user alerted)
21 Call rejected
22 Number changed
26 Non-selected user clearing
27 Destination out of order
28 Invalid number format (incomplete number)
28 Special intercept announcement
29 Special intercept announcement, undefined code
30 Special intercept announcement, number unassigned
31 Special intercept announcement, call blocked
29 Requested facility rejected
30 Response to STATUS ENQuiry
31 Normal, unspecified
34 No channel available
35 Call queued
41 Temporary failure
42 Network congestion
43 Access information discarded
44 Requested channel not available
47 Resources unavailable, unspecified
A-4 Appendix A — Cause Code Tables
TABLE A-3
Q.931 Cause Messages
EIA Port Text
due to group restriction
LCD Text Origin
1 CCITT
2 CCITT
3 CCITT
NT 4 National Specific
6 CCITT
7 CCITT
NT 8 National Specific
NS 8 Network Specific
NT 9 National Specific
NT 10 National Specific
NT 11 National Specific
NS 13 Network Specific
16 CCITT
BUSY CCITT
NO RESPONSE CCITT
NO ANSWER CCITT
21 CCITT
22 CCITT
26 CCITT
27 CCITT
28 CCITT
NS 28 Network Specific
NS 29 Network Specific
NS 30 Network Specific
NS 31 Network Specific
29 CCITT
30 CCITT
31 CCITT
34 CCITT
35 CCITT
41 CCITT
42 CCITT
43 CCITT
44 CCITT
47 CCITT
(Continued)