Hangup Cause Codes
- Nathaniel Halbrooks
Finding the Hangup Cause
grep -e '[CALLID].*HANGUPCAUSE' /var/log/asterisk/full |
Replace call id with the hexcode of the call you are looking for
Finding the Hangup Cause
[2014-00-00 00:00:00] VERBOSE[25548][C-000001234] pbx.c: [2014-00-00 00:00:00] -- Executing [continue@macro-dialout-trunk:1] NoOp("SIP/9999-0000abcd", "TRUNK Dial failed due to CHANUNAVAIL HANGUPCAUSE: 1 - failing through to other trunks") in new stack |
In the above example "[C-000001234]" is the CALLID. All log entries related to a call should have these.
In newer Asterisk versions asterisk will log the sip response to it's equivalent Q.931 code
Cause Codes
Q.931(PRI) Cause Code | SIP RESPONSE | Description |
|---|---|---|
1 | 410 | Unallocated or unassigned number |
2 | 500 | No route to specified transit network (Transit Network Identity) |
3 | 404 | No route to destination |
4 | 500 | Send special information tone |
5 | 500 | Misdialled trunk prefix |
6 | 500 | Channel unacceptable |
7 | 500 | Call awarded and being delivered in an established channel |
8 | 500 | Prefix 0 dialed but not allowed |
9 | 500 | Prefix 1 dialed but not allowed |
10 |
| Prefix 1 not dialed but required |
11 |
| More digits received than allowed, call is proceeding |
16 | BYE | Normal call clearing |
17 | 486 | User busy |
18 | 480 | No user responding |
19 | 480 | T.301 expired: – User Alerted, No answer from user |
21 | 603 | Call rejected |
22 | 480 | Number changed to number in diagnostic field. |
23 |
| Reverse charging rejected |
24 |
| Call suspended |
25 |
| Call resumed |
26 | 500 | Non-selected user clearing |
27 | 404 | Destination out of order |
28 | 484 | Invalid number format or incomplete address |
29 | 501 | EKTS facility rejected by network |
30 | 500 | Response to STATUS ENQUIRY |
31 | 404 | Normal, unspecified |
33 |
| Circuit out of order |
34 | 503 | No circuit/channel available |
35 | 500 | Destination unattainable |
36 | 500 | Out of order |
37 | 500 | Degraded service |
38 | 503 | Network out of order |
39 | 500 | Transit delay range cannot be achieved |
40 | 500 | Throughput range cannot be achieved |
41 | 503 | Temporary failure |
42 | 503 | Switching equipment congestion |
43 | 500 | Access information discarded |
44 | 503 | Requested circuit channel not available |
45 | 500 | Preempted |
46 | 500 | Precedence call blocked |
47 | 503 | Resource unavailable, unspecified |
49 | 500 | Quality of service unavailable |
50 | 500 | Requested facility not subscribed |
51 |
| Reverse charging not allowed |
52 |
| Outgoing calls barred |
53 | 500 | Outgoing calls barred within CUG |
54 |
| Incoming calls barred |
55 | 603 | Incoming calls barred within CUG |
56 |
| Call waiting not subscribed |
57 | 501 | Bearer capability not authorized |
58 | 501 | Bearer capability not presently available |
63 | 503 | Service or option not available, unspecified |
65 | 501 | Bearer service not implemented |
66 | 500 | Channel type not implemented |
67 |
| Transit network selection not implemented |
68 |
| Message not implemented |
69 | 500 | Requested facility not implemented |
70 | 500 | Only restricted digital information bearer capability is available |
79 | 501 | Service or option not implemented, unspecified |
81 | 500 | Invalid call reference value |
82 | 500 | Identified channel does not exist |
83 | 500 | A suspended call exists, but this call identity does not |
84 | 500 | Call identity in use |
85 | 500 | No call suspended |
86 | 500 | Call having the requested call identity has been cleared |
87 | 603 | Called user not member of CUG |
88 | 404 | Incompatible destination |
89 |
| Non-existent abbreviated address entry |
90 | 500 | Destination address missing, and direct call not subscribed |
91 | 500 | Invalid transit network selection (national use) |
92 |
| Invalid facility parameter 93 Mandatory information element is missing |
93 | 500 | Message type non-existent or not implemented |
95 | 404 | Invalid message, unspecified |
96 | 500 | Mandatory information element is missing |
97 | 500 | Message type non-existent or not implemented |
98 | 500 | Message not compatible with call state or message type non-existent or not implemented |
99 | 500 | Information element nonexistent or not implemented |
100 | 500 | Invalid information element contents |
101 | 500 | Message not compatible with call state |
102 | 408 | Recovery on timer expiry |
103 | 500 | Parameter non-existent or not implemented – passed on |
111 | 404 | Protocol error, unspecified |
127 | 500 | Internetworking, unspecified |